Jeff Hamling joined Cornerstone in 2017, bringing a wealth of experience and relationships in Atlanta, Georgia. Jeff came to the firm after two years as a lobbyist in Dentons' Atlanta and Washington offices where he represented a number of corporate, governmental, and non-profit clients.

Prior to Dentons, Jeff worked at the Georgia Chamber of Commerce as vice president for state and federal affairs. Jeff joined the Chamber after serving then-Congressman Tom Price for over five years. Starting as a staff assistant, Jeff was quickly promoted to deputy chief of staff, overseeing the Atlanta office and various aspects of the federal legislative staff.

Jeff has also been recognized by prestigious organizations for professional accomplishments: profiled in Capitol Impact Magazine's People on the Move, "Rookie of the Year" award voted on by his peers in the Georgia lobbying community, and James Magazine's Georgia's Political Influencers in Washington, D.C.

Drew Maddox joined the Cornerstone Mississippi team in February 2020 as a vice president with more than 10 years of experience in finance and education policy. Previously, Drew served as the chief financial officer of the Mississippi Department of Revenue, where he oversaw all administrative divisions of the department, including accounting, communications, processing, information technologies and logistics. As CFO, Drew also worked closely with state legislators and statewide elected officials to guide tax policy decisions, liquor laws, and revenue-generating activities.

Prior to his time at the Department of Revenue, Drew also worked as director of state engagement at EdBuild, where he used his knowledge of political and governmental structures to strategically place educational reform proposals in the best positions for success in state legislatures across the country. Drew has also worked at the Mississippi Legislative Budget Office as the Senate budget officer, where he worked closely with leadership to craft and pass balanced budgets.

Drew received his Bachelor of Arts in English literature and his Bachelor of Business Administration degrees from Millsaps College in Jackson, Mississippi. Drew enjoys spending time with his wife and two children (Sam and Bee), baseball, and gardening.

Sally Kilpatrick advises a diverse set of clients on state legislative and regulatory issues with a focus on healthcare, energy, education and economic development policy. Sally joined Cornerstone's Atlanta, Georgia office in September 2015 and has more than 10 years of experience providing strategic advice to the private sector.

Prior to joining Cornerstone, Sally served as vice president of government affairs at the Georgia Chamber of Commerce, the state's largest business advocacy organization. Through her seven-year tenure at the Chamber, Sally developed an extensive background managing legislative and regulatory issues in the policy areas of water, energy, education, economic development and health care. While at the Chamber, Sally served on the Technology Association of Georgia's Government Affairs Taskforce and the Georgia Water Alliance. She managed the Georgia Chamber's Local Chamber Legislative Ad Hoc Committee and legislative affairs for Chamber's Small Business Advisory Council.

She has established strong, bipartisan working relationships with House and Senate members of the Georgia General Assembly and state agency officials. Her industry specific knowledge and key relationships have been valuable in assisting clients to successfully achieve their legislative and regulatory objectives at the state Capitol.

Sally is a current board member of Atlanta Moms Making A Difference and serves on the executive committee of the Georgia Chamber's Government Affairs Council.

Sally earned her B.S. in Journalism at Appalachian State University in Boone, North Carolina. She and her husband Trey reside in Atlanta with their daughter, Phen, and son, Clark.

Paul W. Rainwater most recently held the title as Governor Jindal's Chief of Staff. He resigned in February of 2014 to pursue a career in the private sector and shortly thereafter joined Cornerstone Government Affairs.

Prior to his latest position, Paul held the title of Commissioner of Administration. Before that, he served as Governor Jindal's deputy chief of staff. Prior to that, he served as executive director of the Louisiana Recovery Authority (LRA). Previously, Paul served as legislative director and chief of operations for U.S. Senator Mary Landrieu. From June 2006 to January 2007, he served as director of hazard mitigation and intergovernmental affairs at the LRA, where he managed program policies, served as team leader and coordinated with state and federal agencies to set mitigation priorities. From July 2000 to June 2006, Paul served as the chief administrative officer for the City of Lake Charles.

Paul also formerly served as manager of governmental affairs for Conoco, Inc., Gulf Coast Business Unit in Baton Rouge from 1998 to July 2000; as manager of public affairs for ARCO Chemical in Lake Charles from 1995 to May 1998; and as administrative aide to the Calcasieu Parish Police Jury in Lake Charles from 1988 to 1996.

In addition to his public service duties, Paul also serves as a colonel with the Louisiana Army National Guard in the Joint Director of Military Support for Disaster Response Unit. He previously served as a lieutenant colonel in the Congressional Liaison Office of the Louisiana Army National Guard and as a lieutenant colonel in the United States Army Reserves' 336th Finance Command. For his military service, Paul has been awarded the Bronze Star Medal, the Army Commendation Medal and the Combat Action Badge.

Paul earned a bachelor's degree in government from McNeese State University in Lake Charles, a master's degree in international relations from Salve Regina University in Rhode Island, and is certified as a local government manager by Louisiana State University.

Joe Sims joined Cornerstone with a wealth of experience in public and government affairs, particularly working with the energy industry in Mississippi. Prior to forming his firm, Pinnacle Consulting in 2007, he managed the US Oil and Gas Association, Mississippi/Alabama Division, in the state. His experience includes providing public and government affairs representation for the some of the largest energy companies in the nation.

Joe works in a bipartisan manner to represent his clients' interests. He has demonstrated his ability time and time again to build relationships and alliances that enable his clients to work effectively in state and local government, and to accomplish their business development goals. He has been involved in regulatory and legislative successes that have facilitated significant economic and energy development.

In addition to his state experience and contacts, he maintains very good working relationships with the members and staff of the Mississippi congressional delegation.

Joe was named to Mississippi's Top 50 Most Influential 2017 list recognizing the 50 most influential people in the state across the ranks of elected and appointed officials, economic development professionals, business, media, and government affairs.

He previously served as legislative chairman for Mississippians for Economic Progress (MFEP) during the historic 2002 Mississippi special session on tort reform. MFEP is a coalition of business, industry, and medical interests advocating civil justice reform.

Joe and his wife have three children, and four grandchildren.

20+ years

Jerry Usry joined the firm in 2015, establishing the firm's Atlanta, Georgia office. Prior to joining Cornerstone, Jerry was the principal and founder of a successful, full-service, public affairs consulting firm headquartered in Albany, Georgia

Under retainer with a number of corporate, governmental and association clients, the firm established a strong track record of accomplishments with both the Georgia General Assembly and the U.S. Congress. From securing multi-million dollar appropriations projects, to drafting and implementing complex legislative strategies, Jerry has consistently achieved client goals and enjoys long-term business relationships as a result. He has played a major role in the reform of the Georgia Tax Code, a rewrite of state health and water planning laws, new food safety reporting statutes and the establishment and funding of a variety of university based institutes.

Democrat and Republican governors have appointed him to a variety of government policy posts, including the Georgia Rural Development Council and the ACT-ACF Water Compacts Advisory Committee. Jerry has also been recognized by prestigious organizations for professional accomplishments: Georgia Trend's 40 Under 40, Rising Star in Business and Politics; American Society of Association Executives, National Award for Excellence in Government Relations; James Magazine, Top Ten Independent Lobbyists in Georgia; and Zpolitics, 16 power players under the Gold Dome. Jerry is an original member of Governor Nathan Deal's (R-GA) Finance Committee and was appointed to his Inaugural Executive Committee.

Prior to the establishment of his consulting practice, Jerry was a staff director of a major commodity organization and a regional administrator for a state agency. He is a member of the Georgia Professional Lobbyist Association, Georgia Chamber of Commerce Board of Directors, and the Georgia Agribusiness Council.

A lifelong Georgian and a native of Athens, Jerry has a B.S.A. and a Master's degree in Public Administration.

Elliott Flaggs joined Cornerstone's Jackson office in October 2015. He most recently served as a special assistant attorney general with the Mississippi Attorney General's Office in the capacity of legislative liaison for Attorney General Jim Hood and director of the Child Desertion Unit. His responsibilities included analyzing and advocating legislation impacting state citizens and the Mississippi Attorney General's Office, advising the executive staff on legislative strategies, and making recommendations regarding legislative proposals. He also prosecuted parents for child neglect and abandonment in the Public Integrity Division.

Prior to the Mississippi Attorney General's Office, Elliott attended Mississippi State University where he received a bachelor's degree in industrial and systems engineering (B.A., 2007). After graduation, he was accepted into the Congressional Black Caucus Foundation - Walmart Emerging Leaders Program where he worked on Capitol Hill in Washington, D.C. for Congressman G.K. Butterfield (North Carolina - District 1). Subsequently, he attended The University of Mississippi School of Law and graduated cum laude (J.D., 2012). During law school, he was a member of the Mississippi Law Journal and Dean's Leadership Council while also serving as a Law School Student Body Senator.

Furthermore, Elliott is an active member of the Mississippi Bar Association, Jackson Young Lawyers, Magnolia Bar Association, the Charles Clark Inn of Court and Jackson Professional Group. He is an incorporator and board member of The First Tee of Central Mississippi in Jackson, MS. He is also a 2015-16 graduate of Leadership Greater Jackson and now serves on their board of directors. In addition, Elliott has been recognized as an American Cancer Society - Best Dressed Jackson honoree as a result of his community service efforts and by the Clarion Ledger as a Top Politician and Politico Under 35 in Mississippi.

Elliott and his wife, Brittany, reside in Madison, MS with their daughter, Lianne.

20+ years

Camille Young brings almost two decades of background in the practice of state and federal government affairs to Cornerstone's Jackson, Mississippi office. Prior to joining Cornerstone, Camille spent 10 years as a government affairs representative with one of the State's leading law firms, Watkins Ludlam Winter & Stennis, P.A.

Prior to that, Camille spent five years at the Mississippi Farm Bureau Federation in several positions, including communications specialist, director of media relations and government relations specialist. During her time at Farm Bureau, she also spent time on Capitol Hill establishing relationships and providing support for the agricultural community. She also held a position with the United States Department of Agriculture as an outreach and public affairs specialist.

At Watkins Ludlam, Camille worked for the state and federal legislative interests of clients as varied as an institution of higher learning, a major automotive manufacturer, associations that represent constituents in every county of the state and healthcare entities. In addition to her Capitol lobbying tasks, Camille provided significant support to clients in areas of public relations and community relations.

Mississippi Governor Haley Barbour tapped Camille to serve as a museum liaison for the Mississippi Civil Rights Museum project that joined public and private sponsors to launch the venture that will honor Mississippi's history in the Civil Rights Movement.

Camille is very involved in community activities like the Greater Jackson Chamber Partnership Board of Directors, the Junior League of Jackson Sustainers Board of Directors, Alpha Kappa Alpha Sorority, Incorporated and the Mississippi 4-H Foundation. She also was honored to serve as President of the Mississippi State University National Alumni Association in 2012-13.

Camille has been honored for her professional accomplishments and service to the community as a member of the Mississippi Business Journal's Top 50 Business Women (2006) and Top 40 Under 40 (2005). She was named a Woman of Distinction by the Girl Scout Council of Middle Mississippi and Alumnus of the Year by the Central Mississippi Chapter of the MSU Alumni Association. She also is a member of the BankFirst Board of Directors and the inaugural class of Top 50 Most Influential People in Mississippi.

Camille grew up in Shannon, MS, and graduated from Mississippi State University (B.A., 1994 and M.S., 1996).

Camille and her husband Keith are the proud parents of three children and enjoy living in rural Madison County. Camille is an active participant in her church, community and the school activities of her children.

Jenna Massoni serves as a senior associate supporting the firm's Annapolis, Maryland office. She assists a team of seven senior professionals with issue monitoring, policy research and analysis and legislative advocacy and outreach. She became a member of the Public Relations Society of America Inc. in 2021.

Prior to her current position, Jenna managed health care benefits for the students of Johns Hopkins University and was involved in planning the annual commencement ceremony.

Jenna graduated from Washington College in May 2015 with a B.S. in Business Management and received her M.A. in Contemporary Communications from Notre Dame of MD University in December 2019.