Atty. Keil M. Mueller
Keil Mueller is a resolute and tireless advocate for his clients’ interests. With over 15 years of litigation experience, Keil has regularly represented government entities, investors, consumers, businesses and other Plaintiffs in a wide variety of complex legal matters and class actions.
Profile Summary
About Keil M. Mueller at a glance
Keil M. Mueller is a business, class action, product liability, and litigation attorney based in Portland, Oregon, practicing at Keller Rohrback LLP. Educated at New York University (J.D., 2008). Recognitions include Best Lawyers in America — Commercial Litigation (2026), Best Lawyers in America — Litigation - Securities (2026), and Best Lawyers in America — Mass Tort Litigation / Class Actions - Plaintiffs (2026). Serands clients in Portland, OR and the surrounding metropolitan area.
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About
- Keil Mueller is a resolute and tireless advocate for his clients’ interests
- With over 15 years of litigation experience, Keil has regularly represented government entities, investors, consumers, businesses and other Plaintiffs in a wide variety of complex legal matters and class actions
- His practice focuses on issues related to securities and financial fraud, the environment, consumer class actions, and partner and shareholder disputes among others
- Keil’s thoughtful but tenacious pursuit of his clients’ claims has contributed to significant courtroom victories and favorable settlements
- He has successfully represented clients in matters of corporate malfeasance, taking on big companies such as AIG, Oppenheimer, FedEx Ground, JP Morgan Chase, and Bank of New York Mellon, just to name a few
- Currently, Keil is a key member of teams prosecuting claims on behalf of the State of Maryland, the State of Delaware, and the City of Seattle against multinational chemical manufacturer, Monsanto, and seeking to hold the corporate giant responsible for environmental contamination and other harms caused by Monsanto’s sale and marketing of PCBs
- Prior to joining Keller Rohrback, Keil also was a member of the team that represented the State of Oregon in similar claims against Monsanto, which Monsanto recently agreed to settle for $698 million, the largest environmental settlement in Oregon’s history
- In addition to advocating for his clients, Keil serves as a board member of the Campaign for Equal Justice and of the Oregon Lawyer Chapter of the American Constitution Society
Practice Areas Explained
Keil M. Mueller's Areas of Practice
Each practice area below reflects the types of cases Keil M. Mueller handles, with a brief overview of what that area of law covers.
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Keil M. Mueller is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Oregon →
Keil M. Mueller is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Oregon →
Keil M. Mueller is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Oregon →
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Keil M. Mueller is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Oregon →
Jurisdictional Context
Why local counsel matters in Oregon
Practicing law in Oregon. Legal matters in Oregon are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Portland are typically filed in the local municipal court or the appropriate Oregon state district court, depending on subject matter and amount in controversy. An attorney licensed in Oregon brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Oregon courts without local counsel or pro hac vice admission.
Looking for additional Oregon attorneys? Browse all attorneys in Portland or all attorneys in Oregon.
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