About Andrew C. DeWeese · Portland
Andrew DeWeese, PC is a Portland-based law firm specializing in administrative litigation, regulatory compliance, licensing, and permit disputes, particularly within the cannabis industry in Oregon. The firm is owned by attorney Andrew DeWeese and operated by Steph Barnhart, who serves as operations manager and paralegal. They handle high-stakes legal matters for clients facing business crises, including OLCC violations, litigation, and regulatory challenges. Their motto is 'Experience Driven by Integrity,' emphasizing ethical representation and client-focused advocacy.
Andrew DeWeese, PC provides legal services focused on administrative litigation and regulatory compliance, with deep expertise in Oregon’s cannabis industry regulations. The firm represents clients in matters involving the Oregon Liquor Control Commission (OLCC), including notices of violation, administrative hearings, licensing disputes, and compliance strategy. They have successfully navigated complex cases such as preventing sanctions for accidental THC contamination and securing fair settlements for clients during the pandemic. The firm is based in Portland and serves clients statewide, with a strong track record in cannabis-related legal defense and litigation. Their approach combines industry knowledge, proactive compliance, and courtroom advocacy.
- Owner
- Andrew DeWeese
- Serves
- Statewide in Oregon
About Us
Our firm is attorney Andrew DeWeese and operations manager / paralegal Steph Barnhart. We are based in Portland and handle matters statewide. Our practice involves advising and representing clients who are in the most stressful situations of their lives: a hostile takeover; the breakdown of relationships in a family business; a notice of intent to revoke a business license; a catastrophic business loss. These critical situations call for a lawyer who correctly analyzes the legal relationships at stake, who clearly and accurately describes the legal stakes involved to their client, and who is a skilled courtroom advocate. This lawyer must also be committed to the highest standards of ethics and professionalism, so the client does not question the lawyer’s commitment to acting solely in the client’s best interests and providing unvarnished, direct advice and counsel. Thus, our motto is “Experience Driven by Integrity.” We put these values into practice every day when serving our clients, and we are proud that many clients continue to rely on our counsel for years.
Practice Areas
We have represented clients in administrative matters since the earliest days of the implementation of Measure 91. I know for a fact that one of my clients was the first to have the OLCC approve the sale of a licensed business, and I believe one of my other clients was the first to agree to a stipulated settlement agreement with the OLCC to resolve violations. Our approach is based on a deep industry knowledge and understanding of what the OLCC wants to see and what they are concerned with, backed up with years of experience with the marijuana rules and the willingness to go to the mat for our clients. We have litigated dozens and dozens of OLCC notices of violation.
- Administrative Litigation
- Regulatory Compliance
- Licensing & Permitting Disputes
- Administrative Hearings
Why Choose Us
Our clients consistently praise our diligence, compassion, and ability to navigate complex legal issues. We are known for acting quickly, protecting client interests, and achieving favorable outcomes — including avoiding sanctions, securing fair settlements, and winning arbitration cases. We are experienced in cannabis law and regulatory defense, and we prioritize proactive compliance to prevent disputes before they arise.
- Proven results in cannabis litigation
- Early intervention to mitigate violations
- Client-focused, ethical representation
- Skilled courtroom advocacy