• Bridging the gap between business and government, between policy and politics.


HLP&R gets recognition because we get results. We are more than lobbyists. We are strategic advisors. We know our clients, we know their industries, and we operate as an extension of their businesses. We tailor our services to our clients, and we provide them with thoughtful, experienced counsel.

HLP&R Advocacy is a bipartisan, solutions-driven government affairs and public policy firm where our experience and counsel deliver consistent results for our clients. We are more than an ordinary government affairs group. We provide a broad range of strategic advisory services for our clients including legislative, regulatory, business development, crisis and reputation management, and political risk mitigation. If it is at the intersection of business and government, policy and politics, that is where we excel. Known for our combination of policy expertise and political savvy, our partners bring decades of experience successfully navigating Washington’s shifting landscape.

HLP&R is composed of only partner-level members guaranteeing clients direct, hands-on work from our most experienced advisors to advance their business objectives. We represent leading companies across a broad array of industries – from Fortune 100s to startups – and consistently and reliably deliver for them. This is why Bloomberg Government recognized us as one of the top ten lobbying firms in Washington, DC. We develop sound strategies, drive results, and produce big wins for our clients who expect nothing less.

Navigating the changing landscape of government



Tim Hannegan co-founded HLP&R after 23 years as a policy expert and thought-leader in government and advocacy. Formerly Assistant Director of GAO, Tim spent 10 years conducting executive agency oversight and developing policy expertise on key issues including trade, financial services, tax, energy, transportation, defense, and telecommunications. Tim is known in Washington as a strategic advisor who possesses the rare combination of policy expertise across multiple subject matters, political smarts, and long-standing relationships throughout the Administration and Congress.
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Daniella Landau is well-known for her strategic skills and her political and business network in Washington, major state and local jurisdictions, and key international markets. Daniella’s professional background places her at the nexus of business and government with experience in devising successful strategies and providing counsel to companies and non-profits seeking to achieve their business development, policy, and funding objectives.
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Jerr Rosenbaum has been a trusted advisor and senior staffer to some of the highest ranking Senate and House Republican leaders in Washington. During more than 13 years on Capitol Hill, Jerr helped shape landmark legislation, crafted appropriations strategies, and provided Senators and Members with sound, reliable policy and political counsel.
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Christina McGarry serves as policy advisor to HLP&R, specializing in legislative policy and advocacy before executive agencies. Prior to joining the firm, Christina worked as a legislative assistant for Rep. Mario Diaz-Balart, where she handled appropriations, health care, labor, judiciary, and education issues. She also previously worked for Rep. Doc Hastings.
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Jay joins the firm as a 15-year Capitol Hill veteran, having served as a top advisor to senior members of the Senate Finance and House Ways & Means Committees. He is highly regarded in Washington for his depth of policy knowledge combined with a keen understanding of the political forces that shape lawmakers’ decisions and the policymaking process.
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HLP&R is privileged to serve as trusted advisers to more than 30 of America’s best known and most reputable organizations across a range of industry sectors. Our clients include six Fortune 100 companies, early- and growth-stage startups, leading industry trade associations, small businesses, privately-held companies, municipalities, and non-profits. We value our relationships with our clients and their confidentiality, and can provide detailed case studies of our work upon request.