Advising the next generation of business builders and buyers, from funding to exit.

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Your legal guides from first search to final signature.

Deal Friction Flow

Groundswell is built around what drives the entrepreneurial community: strategic guidance, straightforward answers, and clear paths to closing. We know the ecosystem, we speak the language, and we see the waves. Bring complex deals into focus, build momentum naturally, and advance every step of the way with purpose.

This is entrepreneurship done right.

Years of Experience

20+

Billion in Transactions

50+

Resources

Expert-vetted resources designed to help you search, structure, and close with precision.

Documents

⬇ LOI

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Terren with long hair wearing a dark patterned blouse against a black background.
Mauhan smiling wearing a black jacket over a white shirt against a plain background.
Mark smiling person in front of a surfboard.

👋 Hey There

We believe great client relationships lead to better deals. That's why we focus on exceptional client service aimed at building long-term relationships and lasting partnerships. Premium services delivered with a down-to-earth approach: pretense-free, rigamarole-light, and ego-optional.

We’re responsive, proactive, and pretty fun to hang out with.

Just ask our clients / surf buddies.

Testimonials

  • "Working with Mark on my business acquisition was an excellent experience from start to finish. He was proactive, consistently staying on top of every detail until the deal closed. If you’re looking for a reliable, knowledgeable, and efficient lawyer for an M&A deal, I couldn’t recommend Mark more highly."

    Greyson Boerner

    Acquired a niche restoration company in Southern California.

  • “Groundswell's expertise was invaluable during our acquisition. Their team was incredibly knowledgeable, guiding us through every step with clarity and confidence. They made us feel comfortable even during the most complex negotiations, and their insights undoubtedly made a significant difference in achieving the best possible outcome.”

    Emily and Eric Bua

    Acquired a CA-based e-commerce lighting company.

  • "Mark and Hal are, without a doubt, the attorneys you want on your team. They guided me through every step of the process and were able to get quite creative on the non-traditional deal structure I ended up with. Additionally, they're both great humans -- the type of attorneys you actually like speaking to and spending time with. I can't recommend them enough!"

    Jessi Beyer

    Acquired a controlling stake in a subscription consumer goods business.

  • "I have been through 3 acquisitions and have never liked the legal team. They wanted to always just get the job done. Hal and team were different. They were all about me and protecting me and my interests during the entire acquisition process. Offering advice, counsel, and best paths forward. I will be using Hal and his team for every acquisition moving forward."

    Bill McGlade

    Acquired an online marketing agency.

  • “The Groundswell team was able to sniff out what didn’t make sense and that helped me negotiate from a position of strength. They were able to see around corners. I’d be remiss if I didn’t add that they were incredibly responsive, especially on days that it mattered. 10/10 would hire again.”

    John Acevedo

    Acquired an over-the-top streaming platform.

  • "I cannot speak highly enough of Groundswell. Their intelligence and expertise were evident at every step in the process. While dealing with a challenging seller, Mark consistently provided excellent advice and insights. His team was not only flexible and accessible but also adept at handling unexpected challenges, always prioritizing my best interests. If you're looking for a law firm specializing that blends expertise with a personal approach, reach out."

    Mike Hone

    Acquired a CA/NV commercial landscaping business

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