A leader within Florida's government relations arena, Mercer Fearington, Jr. has been representing clients before the executive and legislative branches of Florida government since the mid-1990's. Mercer is the past Chairman of the Florida Agricultural Coalition and is a graduate of the Wedgworth Leadership Institute for Agriculture -- an affiliate of the Institute of Food and Agriculture and Sciences at the University of Florida. Mercer is a graduate of Mercer University.

Mercer lives in Tallahassee with his wife, Lindsey, and their three daughters.

Alisa Nave-Worth joined Cornerstone in January 2025 following her time as CEO of Alisa Nave Consulting. With over a decade of experience in politics and government affairs, she brings unparalleled expertise in Nevada's legal, political and public policy matters. She leverages her deep understanding of the legislative process and strong relationships with lawmakers and regulators to craft and advocate for legislative strategies that benefit a diverse array of corporate clients.

Known for her integrity and commitment, Alisa has built a reputation as a trusted advisor in the Nevada political landscape. Additionally, she previously opened the Las Vegas offices at different times for two of the largest law and lobbying firms in the country. Alisa specializes in addressing legislative, regulatory and administrative issues, focusing on transportation, construction, emerging financial technologies, entertainment, infrastructure and campaign finance compliance. She has successfully represented clients before the Nevada Legislature and state agencies, guiding them through complex rule-making and regulatory matters.

A seasoned campaign consultant, Alisa has worked on Presidential campaigns, where she spearheaded grassroots initiatives and built influential political coalitions across Nevada. As the Executive Director to the Nevada Senate Caucus, she developed and implemented political and communications strategies, enabling the passage of critical legislation across sectors such as transportation, energy, taxation, gaming and education.

Alisa holds a B.A. in Russian Language and Literature and Public Policy Studies from Duke University and earned her Juris Doctorate from Berkeley Law School, UC Berkeley. Licensed to practice law in Nevada and California, she is a member of the Clark County Bar Association and the Nevada State Bar Association.

Jason Frierson joined Cornerstone in February 2025 following his service as the United States Attorney for the District of Nevada since 2022. He was nominated by President Biden, acting as the Chief Federal Law Enforcement Officer for the District of Nevada, and the first African American to hold the position. In this role, Jason led a team of more than 100 prosecutors and staff professionals, including 55 attorneys who handled federal criminal, civil and appellate cases. In addition, he met regularly with local, state and federal law enforcement agency leaders, and other key community leaders and organizations to discuss investigations, current cases and developing trends.

Jason started his career representing the indigent, serving as a prosecutor of white-collar criminals and as an agency attorney in protecting child abuse victims. In 2010, he was elected to the Nevada State Assembly and was voted the best freshman Assemblyman in 2011. After being re-elected for the 2013 session, he served as Chairman of the Judiciary Committee.

After one term out of the legislature, Jason was elected to return to the Nevada Assembly in 2016 and was then selected in a bipartisan and unanimous vote to serve as the Assembly's first African American Speaker in Nevada history. He served in that role for three consecutive legislative sessions, leading one of the most diverse state legislatures in the country and the first female majority legislature in the country's history.

Prior to his legislative service, Jason served in a variety of significant legal roles in both the public and private sector. Jason holds a B.S. in Health Science from the University of Nevada and earned his Juris Doctorate from William S. Boyd School of Law, University of Nevada, Las Vegas.

David Browning is one of Florida's top political campaign operatives. David has worked with Florida's most powerful elected officials and brings a new dimension to Southern Strategy Group's team of lobbyists in Tallahassee. David was instrumental in raising millions of dollars for campaign war chests in the 2010 election cycle for Governor Rick Scott. David also worked for Chief Financial Officer Jeff Atwater and Agriculture Commissioner Adam Putnam and set fundraising records for those campaigns. Fundraiser, strategist, and confidante, David is among a handful of insiders who help guide candidates to victory in Florida.

David has been equally busy helping the legislative branch. David served as the chief fundraiser for Speaker Dean Cannon. David's responsibilities included raising money for Speaker Cannon's personal campaign, as well as working with House leadership to raise money for the House Republican Caucus. Through these efforts, the Florida House returned 81 republican members giving them a supermajority.

In the Florida Senate David represented Senate President Mike Haridopolos and Senate Majority Leader Andy Gardiner. David worked with Senator John Thrasher who was elected in a highly contested special election. David brings his unique expertise to the Tallahassee team and offers our clients unprecedented insight into the workings of state government.

David is a graduate of Florida State University with a degree in Political Science.