20+ years

BL Rankings, The Best Lawyers in America
    Administrative/Regulatory Law, 2010-2022
    Government Relations Practice, 2007-2022
    Lawyer of the Year: Government Relations Practice (Austin), 2017

Over 35 years' experience representing clients in their dealings with state and federal government agencies, legislators, members of Congress, and executive branch agencies.

Serves as a Director and Chair of the Audit Committee for Austin Trust Company.

Represented a Fortune 100 company regarding the siting, permitting and development of a nuclear power plant.

Represented a Fortune 100 company developing statewide public support for a $4+ Billion liquefied natural gas export facility.

Represented multinational energy trading company regarding doing business with various Texas generators.

Successfully represented the British Consul General regarding legislation which would have limited state investments in companies doing business in Northern Ireland.

Successfully represented the State of Maine, negotiating its withdrawal from an interstate compact with Texas and Vermont, including the waiving of payment of a multi-million dollar exit fee.

Represents one of the world's largest education assessment companies in its dealings with Texas state government.

Represented Texas Academy of Family Physicians in legislative matters including dispensing, rural health care, access to care and other issues.

Represented the Professional Advocacy Association of Texas; the state association of the governmental affairs community in legislative and regulatory matters.

Represented one of the largest medical marijuana companies regarding its efforts to enter the Texas market. ? Represented a national industry association regarding the passage of Texas legislation legalizing hemp cultivation and the establishment of a new hemp industry in Texas.

Represented a Texas groundwater conservation district in its dealings with the U.S. Department of Agriculture developing a multistate, regional effort to conserve groundwater, and before the Texas Legislature

Martin Hubert brings a wealth of state government experience to the clients of Cornerstone Government Affairs. From his early career as chief counsel to the Senate Natural Resources Committee to his gubernatorial appointment as a commissioner of the Texas Commission on Environmental Quality to his eight years as the deputy comptroller of Texas, Hubert has managed thousands of employees and millions of taxpayer dollars under both Democrat and Republican administrations.

Martin was the 2008 recipient of TSABAA's Administrator of the Year Award. Presented annually, this prestigious award was established to formally recognize state employees who have demonstrated outstanding leadership skills and who have made significant contributions to state agency business administration.

As the final general counsel to legendary Lt. Governor Bob Bullock, Martin learned the mastery of government relations from some of the most influential leaders in Texas history. His knowledge of agriculture stems from generations of the Hubert family's cow/calf and farming operations in South Texas and serving as the Texas Deputy Commissioner of Agriculture for eight years. Martin offers a unique combination of legal, natural resources, tax policy and state government procedural expertise.

Hubert is a graduate of the Georgetown University Law Center and St. Mary's School of Law. He was Brigade Executive Officer in the Corps of Cadets at Texas A&M University, where he was a member of the Ross Volunteers Honor Guard and the Singing Cadets. He successfully completed Army Ranger School and served in the U.S. Army Reserves. He is a marathon runner and coaches his son's little league teams.

Hubert is a second tenor and helps raise money for Legal Aid through the Travis County Bar Association's "Bar and Grill" fundraisers. He and his wife Celeste live in a historic home in Austin, where they are involved with the Austin Symphony, St. Theresa's Catholic Church and School, and the happily busy lives of their children Belle and Patrick.

20+ years

Steve Holzheauser joined Cornerstone's Austin, Texas office October 2018 as a senior consultant and brings over 30 years of experience in state politics and government.

Prior to joining the firm, Steve founded and ran the Woodhouse Group Texas, a state governmental affairs firm. Since 1999, Steve has represented clients across a wide range of policy areas. He possesses an in-depth knowledge of the legislative process and maintains broad relationships with key members of the Texas Legislature, the Governor's office, and state agencies.

Steve was a member of the Texas State House of Representatives from 1987 until his retirement in 1998. While in the Texas Legislature, For four years Steve held the position of Chairman of the House Energy Resources Committee overseeing all aspects of the oil and gas industry. Additionally, Steve served on the powerful Ways & Means, General Calendars, Natural Resources, Economic Development, and Environmental Affairs Committees. During this time, he oversaw many diverse issues including energy policy, telecommunications, environmental issues, tax policy, economic development and water policy to name just a few.

20+ years

With decades worth of hands-on experience in Texas government and politics, Sabrina Brown offers valuable strategic counsel, as well as access to a vast network of key associates and decision-makers to a broad spectrum of clients.

Brown's extensive expertise in the state's legislative, regulatory, public affairs and appropriations arenas - combined with her strong bipartisan relationships - provides businesses and organizations with vital political and governmental guidance. Utilizing her many contacts within the Texas House and Senate, Executive Office and state agencies, Sabrina has effectively achieved the public policy goals of a wide variety of clients, from aeronautics giants to groundwater districts to Fortune 100 companies.

Prior to opening her own consulting firm, Sabrina was a highly successful lobbyist for an Austin-based law firm, and previously spent a half-dozen years at the Capitol working for the Texas House of Representatives. Her first-hand experience has given her a detailed familiarity with the legislative process and an in-depth understanding of state lawmakers' perspectives. With these insights, Sabrina creates effective messages and uses her firm's resources to efficiently communicate a client's position to busy legislators.

Brown earned her Masters in Public Affairs at the Lyndon B. Johnson School of Public Affairs at The University of Texas, and her bachelor's degree at Texas A&M University.

Brown currently serves on the boards of Dell Children's Medical Center Foundation, West Austin Youth Association, Beyond Batten Disease Foundation, Friends of the Governor's Mansion, Texas Conference for Women, and the Seton Development Board.

6-10 years

2019 Capitol Inside Texas Lobby Power Rankings - "Rising Star"

Texas Legislature
Texas Governor's Office
Texas Commission on Environmental Quality
Texas Comptroller of Public Accounts
Public Utility Commission of Texas
Railroad Commission of Texas
Texas Water Development Board
Texas Department of Transportation
Texas Department of Agriculture
Texas Alcoholic Beverage Commission
Texas Parks and Wildlife Department
Texas Animal Health Commission
Texas Department of Insurance
Texas Facilities Commission
Texas Health and Human Services Commission
Texas General Land Office
Texas Department of Licensing and Regulation
Texas Department of Public Safety

Matthew Bentley is a government relations consultant working for associations, companies, local governments and non-profit organizations in Texas. His practice is focused on environmental management, energy and utility regulations, private property interests, natural resources, infrastructure projects, economic development and alcohol issues. Matthew focuses his guidance on public positioning, issue management and government relations. His success relies greatly on his extensive relationships with elected officials and staff throughout the legislative and executive branches of state government. His work has resulted in the development and implementation of public policy; formulation of strategy with key government officials; and improved communication between legislative and business leaders at the highest level.

Matthew began independent lobbying during the 83rd Legislative Session (2013). Among others, he currently represents the country's largest telecommunications company, the state's leading utility association, a mining operation, a Class A water utility, a conservative tort reform organization, a multi-national transportation infrastructure company, a mid-sized manufacturer seeking regulatory rule changes, an association involved with the Texas Sunset Advisory Commission, a group of Texas wineries, a residential developer and a non-profit cancer research foundation. Previous clients have included the state's two largest waste and recycling businesses, several landowner groups, an oil and gas trade association, special purpose districts, a leading power generation company and other major infrastructure projects. Matthew was recently named a Top Ten "Rising Star" by Capitol Inside, a bi-partisan publication covering Texas politics and government.

Throughout the 82nd Texas Legislature (2011), Matthew was under contract to Reggie Bashur, Cliff Johnson, Clay Pope and Luis Saenz, working on their clients' interests before the Texas Legislature and agencies throughout the state. During the 81st Legislative Session (2009), he worked for Commissioner Todd Staples at the Texas Department of Agriculture, as the Commission underwent the Sunset Advisory Commission review process.

Matthew also previously served as Business Development Manager for Procurement Strategy Group, Inc. This Austin-based government relations firm was well respected by government and business leaders for brokering mutually beneficial procurement solutions, until it dissolved due to retiring partners in 2012. Matthew helped companies target and win projects with federal, state and local governments.

Matthew has considerable experience and great success in working on political campaigns throughout Texas and the United States. In 2018, Matthew had a one hundred percent win rate as he consulted on Cody Harris' campaign for the Texas House of Representatives, U.S. Congressman Lance Gooden's open seat race for Congress and judicial races throughout East Texas. Matthew also served as Campaign Manager for State Representative Byron's Cook successful 2016 campaign for re-election. That race was among the highest profile and most seriously contested races that cycle. Matthew started his campaign work with Commissioner Todd Staples' statewide Agriculture Commissioner campaign and Governor Rick Perry's 2010 gubernatorial and 2012 presidential races. Matthew is very involved with the Texas GOP's Mighty Texas Strike Force, having served as the Virginia Co-Captain for the 2016 General Election.

Matthew presently serves on the Advisory Council for Texan by Nature, a non-profit organization founded by Former First Lady, Laura Bush, which focuses on safeguarding the environment with respect to private property interests and economic development. Matthew graduated from The University of Texas at Austin.

20+ years

In 2017, Governor-elect Phil Murphy selected Eric to serve on the Human Services Committee for his transition team. During that same year, he was nominated by Kentucky State Senator Jimmy Higdon and commissioned by Kentucky Governor Matt Bevin to become a Kentucky Colonel.

In 2004, Eric was nominated by New Jersey Governor Jim McGreevey to serve on the South Jersey Port Corporation's Board of Directors, which is responsible for the development of port facilities in South New Jersey. Eric was reappointed in 2008 by Governor Corzine and again in 2017 by Governor Chris Christie.

In 2018, Eric was appointed to the Advisory Board of the Burbank International Film Festival.

Eric is also a founding member of the Board of Directors for the NYC Fashion Manufactures Alliance of Design Educators and Save the Garment Center in New York City; a position he's held since 2008.

In 2007, Eric was selected by the American Council of Young Political Leaders, a bi-partisan not-for-profit international exchange organization, as a delegate to Vietnam for a two-week political exchange program. Eric joined six other young political leaders from the U.S. to study Vietnam's political system, engage in dialogue on international issues, and forge professional relationships. He's also participated in international trade missions, including trips to the Netherlands, China and the United Arab Emirates.

Eric was appointed in 2007 by New Jersey Governor Jon Corzine to serve as a member of the Economic Growth Council to assist with statewide economic development policies.

Eric is a former Committee Chairman for the Mercer County College Board of Trustees Advisory Committee and a former member of the Board of Trustees for the Arts & Business Partnership of Southern New Jersey. He's served on the boards of the Mercer County Workforce Investment Board, the Mercer County Economic Development Committee and Junior Achievement. Eric was appointed by Assembly Majority Leader Paul DiGaetano in 2002 to the New Jersey Council of Local Mandates and served as Vice Chairman until 2004.

20+ years

Clay was just re-appointed to U.S. EPA's Clean Air Act Advisory Committee, a senior-level policy committee established by Congress to provide EPA with independent advice, information and recommendations on policy and technical issues associated with the development, implementation and enforcement of the Clean Air Act.

Clay is also a member of The National Petroleum Council, a federally chartered and privately funded advisory committee established in 1946 by President Truman, to advise, inform, and make recommendations to the Secretary of Energy with respect to any matter relating to oil and natural gas or to the oil and natural gas industries.

Further, Clay is a member of the Executive Committee and serves as the Chair of the Transportation Committee for the Texas Association of Business.

Additionally, he was a member of the Executive Committee of the World Congress on Information Technology (WCIT). He played a key role in WCIT Austin's national and global networking program having traveled extensively in Europe, the Middle East, Asia and Mexico to promote trade exchange with top-ranking government and business leaders.

Clay Pope founded Pope Strategies Group with a mission to cultivate honest and effective relationships. Clay's personal approach takes the complexity out of business relationships, making him your trusted partner for success. He represents clients before the Texas Legislature, Texas Governor's Office, Texas Commission on Environmental Quality, Texas Railroad Commission, Texas General Land Office, Texas Comptroller's Office, Public Utility Commission of Texas, Texas Water Development Board and Texas Department of Transportation.

Clay Pope is a public affairs consultant based in Austin, Texas. He has over 36 years of experience in the governmental field.

Clay assists corporations, local governments, individuals and foundations primarily in the areas of environmental management, water resource development, economic development, information technology, taxation and transportation. He represents clients before the Texas Legislature, Texas Governor's Office, Texas Commission on Environmental Quality, Texas Railroad Commission, Texas General Land Office, Texas Comptroller's Office, Public Utility Commission of Texas, Texas Water Development Board and Texas Department of Transportation.

Prior to establishing an independent practice, Clay sub-contracted with Mike Toomey, Doc Arnold and Cliff Johnson working on their clients' interests before the Texas Legislature and state agencies. Term: July 1991 to August 1993.

Clay was the Commissioners' Legislative Assistant at the Texas Water Commission, the predecessor agency to the Texas Commission on Environmental Quality. In this position he presented the commissioners' positions to the Texas Legislature. Term: January 1991 to July 1991.

The Texas House of Representatives employed Clay in various positions. Starting as a Sergeant, commonly known as a Page, he was later assigned to the Appropriations Committee. Next, Representatives Sam Johnson (R-Plano) and Cliff Johnson (D-Palestine) jointly employed him as a Legislative Assistant and later he became Administrative Assistant to Cliff Johnson. Upon Cliff Johnson becoming Governor Clements' Legislative Director, he became Legislative Assistant to Representatives Ron Lewis (D-Mauriceville) and Rick Perry (then D, later R-Haskell). Once Cliff Johnson's successor was elected, Dick Swift (D-Palestine), Clay was employed as his Administrative Assistant. Term: September 1985 to January 1991.

Clay was just re-appointed to U.S. EPA's Clean Air Act Advisory Committee, a senior-level policy committee established by Congress to provide EPA with independent advice, information and recommendations on policy and technical issues associated with the development, implementation and enforcement of the Clean Air Act.

Clay is also a member of The National Petroleum Council, a federally chartered and privately funded advisory committee established in 1946 by President Truman, to advise, inform, and make recommendations to the Secretary of Energy with respect to any matter relating to oil and natural gas or to the oil and natural gas industries.

Further, Clay is a member of the Executive Committee and serves as the Chair of the Transportation Committee for the Texas Association of Business.

Additionally, he was a member of the Executive Committee of the World Congress on Information Technology (WCIT). He played a key role in WCIT Austin's national and global networking program having traveled extensively in Europe, the Middle East, Asia and Mexico to promote trade exchange with top-ranking government and business leaders.

11-15 years

0-5 years

Logan Spence is a Partner at the Austin office of Hance Scarborough, LLP where he represents trade associations, corporations and interest groups before the state legislature and agencies. Logan began his career in state government in 1999 as an intern for State Senator Robert Duncan. In 2001, he worked as the legislative assistant to State Rep. Warren Chisum. While attending law school in Houston, Logan worked for Harris County Judge Robert Eckels, District Judge Harvey Brown and the government affairs office of El Paso Energy.

Upon graduating from law school, he spent five years as a Policy Director in Gov. Rick Perry's Office of Budget, Planning and Policy covering a wide variety of issues and agencies. Logan moved to the Texas State Senate in 2007 where he served as Sen. Dan Patrick's Chief of Staff.

In 2013, Logan served as the manager for Dan Patrick's campaign for lieutenant governor. This ultimately successful effort, against three established statewide incumbents, gave Logan first-hand experience in political communications, grassroots management and campaign strategy. After leading the transition team, Logan was named Chief of Staff to the Lieutenant Governor in 2015.

Logan's broad experience in the Texas House, Texas Senate as well as the Office's of Governor and Lt. Governor, give him a unique ability to advocate for his clients in Texas government. Logan earned a Bachelor of Science degree in Communications from Texas Tech University and a Juris Doctorate degree from South Texas College of Law. He has been married to his wife Cynthia for over 20 years and they have four children.

15-20 years

Tony Essalih joined Cornerstone in 2011 as a co-lead of the firm's flagship Texas office in Houston. He spent 12 years on Capitol Hill and came to Cornerstone from the office of Congressman John Culberson (R-Houston). Tony worked for Congressman Culberson for 10 years, the last five as his chief of staff. Prior to becoming chief of staff, Tony served in a variety of capacities including legislative assistant, legislative director, communications director, and deputy chief of staff. He spent eight years in Washington, D.C. before relocating to Houston in 2007.

As chief of staff, Tony was responsible for guiding the day-to-day operations of the Congressman's Washington and Houston offices, and oversaw a 15-member staff under a fixed budget. Outside of the office, he served as the principal liaison to the Congressman's campaign committee and provided strategic counsel and advice related to his re-election efforts. Tony's areas of policy expertise include transportation, energy, budget and appropriations. Tony also led outreach efforts and served as an emissary on behalf of the Congressman with state lawmakers in Austin and local elected officials in Houston.

Prior to Culberson's election in 2001, Tony worked as a legislative assistant for Congressman Culberson's predecessor, former House Ways and Means Committee Chairman Bill Archer. Tony's began his tenure on Capitol Hill with former House Natural Resources Committee Chairman Doc Hastings.

Tony has advised and assisted numerous local, state, and federal campaigns. He serves on the board of the National InterFaith Foundation, the Advisory Board for the Houston Technology Center, spent two years on the Board of the Spring Branch Medical Center and was a member of Houston Mayor Annise Parker's transition team in 2010.

Tony was born and raised in Fredericksburg, VA and received his B.A. in Political Science from Mary Washington College. He was a member of Mary Washington's NCAA semifinalist men's soccer team. He lives in Houston and has two angelic daughters, Grace and Libby.