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President & Founding Partner, The DT Firm

David M. Thomas, Esq

David M. Thomas is the founder and president of The DT Firm, where he brings over 20 years of experience at the highest levels of Pennsylvania government. Dave began his public service career as a legal intern with the House Republican Caucus, rising quickly through the ranks to become a go-to negotiator on budget, infrastructure, energy, and public safety issues.

He served in senior legal roles for more than a decade—including as Executive Director and Counsel for the House Liquor Control Committee and Chief Counsel to the House Appropriations Committee. In 2011, he was appointed Chief Counsel to Speaker of the House Sam Smith, where he played a central role in passing Act 89 and other signature legislation.

After a year in the private sector with the Pennsylvania Association for Justice, Dave returned to the Capitol to serve as Chief Counsel to Senate Majority Leader Jake Corman. There, he helped shape critical bills including Act 16 (Medical Marijuana) and oversaw the Senate floor calendar and legislative strategy.

In 2016, Dave launched The DT Firm to help clients—from unions and municipalities to private developers and nonprofits—navigate the complex world of Pennsylvania government and economic development. Today, he continues to serve as a legal and legislative advisor for clients across more than 40 counties.

 

Executive Summary

For nearly two decades, David M. Thomas has been at the center of legislative strategy in Harrisburg. He is the only registered lobbyist in Pennsylvania to have served as Chief Counsel to both the Speaker of the House and the Senate Majority Leader—a unique distinction that speaks to his bipartisan relationships and unmatched experience.

As a trusted advisor and seasoned negotiator, Dave has helped deliver major wins across infrastructure, energy, healthcare, economic development, and state appropriations. Today, as President and Founding Partner of The DT Firm, he brings the same clarity, access, and results-driven approach to clients across the Commonwealth.

Signature Legislative Leadership

🧾 Budget Negotiations (2010–2016)
As lead Republican negotiator, Dave helped shape multiple state budgets and fiscal codes, navigating high-stakes deals with governors of both parties.

🌿 Medical Marijuana (Act 16 of 2016)
Instrumental in the design and negotiation of Pennsylvania’s landmark medical cannabis legislation.

💰 Marcellus Shale Impact Fee
Crafted critical components of Pennsylvania’s natural gas tax and environmental reinvestment structure.

🚘 Transportation Funding (Act 89 of 2013)
Led House efforts to modernize Pennsylvania’s transportation infrastructure, securing billions in new revenue.

🎰 Pennsylvania Gaming Laws
Helped draft and advance sweeping changes to the state’s gaming landscape—including online gaming and consumer protections.

🔒 Protection from Abuse Legislation
Negotiated key updates to improve victim protections and streamline legal processes in family court.

🏗 Redevelopment & Financing Programs
Deep experience securing RACP and CFA funds to support public and private infrastructure projects across the state.

Education & Credentials

🎓 Shippensburg University
Bachelor of Science in Business Administration

⚖️ Widener University School of Law
Juris Doctor

📜 Bar Admission
Admitted to the Pennsylvania Bar (2002)

Career Timeline:

2002-2003
Legal Intern → Assistant Counsel, House Judiciary Committee
Began public service career while attending Widener Law.
2003-2006
Executive Director & Counsel, House Liquor Control Committee
Drafted legislation, led stakeholder outreach, and advised members on statewide alcohol policy.
2007–2010:
Chief Counsel, House Appropriations Committee
Oversaw budget negotiations and managed all legislative spending priorities under GOP leadership.
2011–2014:
Chief Counsel to Speaker Sam Smith
Served as lead negotiator on major bills including Act 89, Pennsylvania’s transportation funding package.
2014–2015:
Chief Lobbyist, PA Association for Justice
Led legislative advocacy and PAC strategy for the state’s largest plaintiff attorney association.
2015–2016:
Chief Counsel to Senate Majority Leader Jake Corman
Managed Senate floor activity and helped deliver landmark legislation such as Act 16, legalizing medical marijuana.
2016–Present:
President & Founding Partner, The DT Firm
Launched one of Pennsylvania’s most effective bipartisan government affairs firms—delivering results in legislation, economic development, and state funding.

June 6, 2025 - Central Penn Business Journal

David Thomas of DT Firm Named to CPBJ 2025 Powerlist

David M. Thomas, Esq., the founding partner and president of DT Firm, has solidified his reputation as a preeminent figure in Pennsylvania's political landscape. His recent recognition on the Central Penn Business Journal's 2025 Powerlist is a testament to his impactful contributions and unwavering leadership. With a career spanning over a decade, Thomas has been instrumental in shaping public policy and advocating for diverse issues that resonate across the state. His expertise and dedication have not only earned him respect and accolades but have also made him a trusted advisor in navigating the complexities of state government.

Read More Here...

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"One of the things that amazes me about The DT Firm is that when you walk into the State Capitol, they seem to know everybody. Whether Republican or Democrat; House or Senate, you know that you're seeing genuine relationships in order to get something done."

Rob Ross, President of the PSPA
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"We’ve worked with the DT Firm for the past three years, and they’ve been instrumental in identifying grants that align with the needs of several projects across Lebanon County. Their strong relationships and consistent updates on developments in Harrisburg have kept us informed and prepared."

Doug Engle, Byler Holdings
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“Partnering with The DT Firm has been a game-changer for our economic development efforts. Their team brings a deep understanding of funding programs, development strategy, and the public-sector landscape, along with the relationships necessary to move projects forward. Their proactive approach, clear communication, and commitment to our goals have helped us secure critical resources and navigate complex processes with confidence.”

Ray Hassey, Wyoming Avenue Development Group
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 "At PASNAP, we fight every day to improve healthcare in Pennsylvania for those who provide it and for those who receive it, and the DT Firm has become an indispensable partner in that fight. Thanks to the DT Firm, PASNAP is more effective in the Capitol than ever before. We are proud to have them as part of our team."

 

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Dr. Jack Pearson

Client Success