Your Corporate Counsel for Growth

Trusted Legal Advisors in Mergers, Acquisitions, Technology, and Emerging Businesses Serving Houston, Dallas, and Beyond

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Vanguard Legal is a Texas-based corporate law firm focused on helping businesses grow, innovate, and succeed.

Houston, Dallas, and Beyond

MERGERS & ACQUISITIONS

We help companies structure, negotiate, and close transactions efficiently while safeguarding their commercial and legal interests. From small strategic acquisitions to complex cross-border deals, our team provides the experience and precision needed to get deals done right.

STARTUPS AND EMERGING COMPANIES

Vanguard Legal advises startups and early-stage ventures as they form, scale, and secure funding. We guide founders through entity formation, venture financing, technology commercialization, and strategic partnerships—so you can focus on building your business.

INTERNATIONAL BUSINESS

Our firm represents international companies expanding into Texas and U.S. markets, as well as domestic businesses growing abroad. With attorneys experienced in cross-border operations, we provide practical counsel on regulatory compliance, tax strategy, and international deal structuring for multinational enterprises.

Meet Our Legal Professionals: Our Team is Dedicated to Your Success.

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PARTNER

Aaron Woo

Aaron Woo represents companies from diverse sectors including energy, software and high-tech.

PARTNER

Doug McCullough

Doug McCullough is a mergers & acquisitions and international business attorney, with a background in taxation.

PARTNER

Danielle Huddleston

Danielle Huddleston focuses on commercial and corporate transactions.

LEGAL SERVICESThe Vanguard Legal Comparative Advantage

Our Advantage

Our comparative advantage stems from our nimble, timely service, dedication to professional excellence, a focus on core competencies, and personal commitment to our client’s success.

Our Clients

We work with clients from nearly every industry ranging from start-up ventures to middle market corporations. We also work with multinational companies expanding into the Texas market and local companies growing globally.

Our Culture

Vanguard Legal has a truly collegial environment that fosters collaboration, personal growth, and initiative. We value attorney development and pride ourselves on the long term retention of our talented attorneys. Join us!

PUBLICATIONS

October 4, 2025

Surviving Mercantilism: International Business Considerations

Since President Donald Trump declared a series of tariffs on “Liberation Day” on April 2, 2025, world markets have been rocked with uncertainty and increased prices for consumers and producers alike. The economic results have been sluggish productivity, job losses, and slowing factory productivity each month since April 2. If there is a silver lining,...

October 4, 2025

Trade Uncertainty Meets Legal Uncertainty

Hold onto the trade policy merry-go-round a bit longer Businesses and consumers across the United States have been dealing with economic uncertainty, persistent inflation, and rising producer costs following sweeping tariffs imposed by President Donald Trump since “Liberation Day.” That economic uncertainty is now coupled with legal uncertainty. On August 29, a 7-4 majority of...

February 3, 2025

M&A Outlook for 2025

Following two weak years of mergers and acquisitions activity, 2024 saw an uptick in M&A dealmaking. According to Pitchbook, Global M&A activity increased by 14% in count and 19% in value year on year in 2024. Deal activity in the United States saw a rebound during the year. Anecdotally, some deal professionals indicate that certain...