Who We Are

After decades of case by case collaboration in the representation of clients in litigation and matters likely to be litigated over the course of their combined one hundred years plus of practicing law, Murray Ogborn, with the encouragement of his partners, and John Quaintance formed Ogborn Mihm Quaintance, Prof. LLC in June 2019 for the practice of law in South Dakota and the representation of South Dakotans and their neighbors in South Dakota courts. In July 2019, Ogborn Mihm Quaintance, Prof. LLC registered the South Dakota business name “OMQ Legal”. OMQ Legal makes available to its clients the integrated resources of Ogborn Mihm, LLP from Denver and Quaintance Law Office P.C. in Sioux Falls, blending proven and accomplished litigators with experienced business, commercial and transactional lawyers to provide the best of representation in litigation and otherwise contested matters ranging from catastrophic injury claims to construction and commercial disputes to creditor rights. Although our Denver and Sioux Falls offices are connected by state of the art technology, our lawyers and staff are committed to personal contact with clients and will, if or when preferable, meet with you face to face. The combined qualifications of approximately twenty lawyers between three offices in Denver, Sioux Falls and Los Angeles provide experience and top-end talent in high stakes business litigation, business transactions as well personal representation for serious injuries.


Our Team

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Our Clients

Our Clients

We represent individuals and companies who either need business advice or experienced trial lawyers when there is no choice, but to litigate your rights in court.

How We Help Our Clients

We pride ourselves on our legal skills and our ability to advise businesses as well as try any case, regardless of size or complexity. John Quaintance and Rachel Hanisch are the core of OMQ’s business transaction law practice. With decades of experience, both are qualified to advise businesses and help you achieve your business goals. While our trial teams relentlessly prepare cases for trial, we do so always keeping in mind the client’s business and litigation goals. To that end, we include the client in the case planning at every step of the process. Our goal is to quickly respond to our clients’ questions and concerns and address their practical business needs. OMQ is a pioneer in the use of jury research and courtroom technology to tell our clients’ stories. When practical, we use trial consultants, focus groups, and other cutting-edge trial techniques and technology to prepare the case for trial.

Our Approach

Where We Try Cases

Our lawyers are admitted to practice in Arizona, California, Colorado, Florida, Nebraska, New Mexico, Pennsylvania, South Dakota, Texas, and Virginia. While most of our lawyers are based in Denver, Colorado, we routinely co-counsel with other law firms from around the country We have offices in Sioux Falls,Los Angeles and Denver.

Where We Try Cases

Let Us Help You or Your Company

Please reach out to speak with one of our lawyers. We are the Firm to depend on for advice as well as action. Contact us now for a confidential consultation about how we can help you.

Contact Us