At Marek, Griffin & Knaupp, we offer skilled legal representation across a diverse range of practice areas. Whether you’re an individual, landowner, or business entity, we bring decades of combined experience to every matter we handle:
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Civil Litigation – From contract disputes to property claims, we advocate assertively and strategically in all phases of litigation.
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Real Estate, Oil & Gas, and Business Law – We provide comprehensive counsel on transactions, negotiations, and disputes involving land use, mineral rights, business formation, and commercial operations.
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Personal Injury – If you've been injured due to someone else's negligence, we’re here to help you recover just compensation for your losses.
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Appellate Law – Our firm is equipped to guide clients through the appeals process, bringing a sharp eye for legal detail and persuasive advocacy to higher courts.
Our Approach
At Marek, Griffin & Knaupp, we believe that every client deserves thoughtful, individualized representation. From the moment you engage our services, we are committed to understanding your goals, explaining your legal options clearly, and crafting a strategy tailored to your unique situation.
Our philosophy is simple: bring the law to your corner. We take the time to educate and empower you—so you not only know what we’re doing on your behalf, but why it matters. Whether your issue can be resolved through negotiation or demands litigation, we ensure you are supported and informed at every step.
A Team in Your Corner
When you work with Marek, Griffin & Knaupp, you're not just hiring one attorney—you’re gaining access to the collective knowledge and insight of our entire legal team. We regularly collaborate and consult internally on cases to ensure every client benefits from the full strength of our experience.
This team-based approach means that no matter which attorney you work with directly, you have the power of a firm-wide perspective behind you.
A Legacy of Success
For over 30 years, Marek, Griffin & Knaupp has built a reputation for legal excellence and client-focused results. Our longevity and track record reflect our unwavering dedication to integrity, preparation, and outcomes that matter.
From complex litigation to high-stakes transactions, we draw on decades of success to guide you toward resolution with confidence and clarity.
Our Team

John W. Griffin, Jr.
John is well known as one of Texas' most successful lawyers, and as one of Texas' Super Lawyers. He is certified by the Texas Board of Legal Specialization in Civil Trial Law and Consumer & Commercial Law.

David C. Griffin
David, partner, is certified by the Texas Board of Legal Specialization in Personal Injury Trial Law and certified by the National Board of Trial Advocacy in Civil Trial Advocacy.

Robert E. McKnight, Jr.
Robert E. Mcknight, Jr., partner, practices in the areas of labor and employment law (including employee rights & benefits, ERISA, wage & hour, & civil rights in employment) and civil rights in housing.