Cotner Blackford Law, PLLC

David B. Cotner

Founder
Legal Career
Dave’s career began while he was enrolled in law school. He was employed at Datsopoulos, MacDonald & Lind, P.C. (DML) as a legal intern in 1981. Upon graduation, he was offered and accepted an Associate position at DML, staying with that firm until 1988 when he accepted employment with Boone, Karlberg and Haddon, P.C., where he advanced to shareholder status. In 2002, Dave transitioned his practice back to DML as a shareholder, staying with DML until May of 2017 when he made the decision to form his own firm, Cotner Law, PLLC.
Dave is admitted to practice in federal courts, including to the United States District Court for the District of Montana, United States Bankruptcy Court for the District of Montana, the United States Court of Appeals for the Ninth Circuit, the United States Tax Court, and the United States Supreme Court. Since receiving his license in 1983, he has been lead counsel in multiple appeals to the Montana Supreme Court. Dave has appeared in District Courts throughout Montana, as well as several Montana agencies.
From the litigation perspective, Dave’s legal diversity is shown by the fact that he has represented clients in obtaining multiple seven-figure settlements and judgments. These seven figure claims involved personal injury, product liability, fraudulent transfers, breach of contract, director and office liability, breach of insurance company breach of duties, real estate development, governmental negligence, shareholder disputes and redemptions, and banking liability. Dave has also successfully defended numerous clients against major claims that have been filed, including being retained as a successor attorney to obtain reversal of prior decisions rendered by judges and juries.
Honors and Recognition

The AV Preeminent designation from Martindale-Hubbell, an honor determined through a peer rating system.

Recognized in “Best Lawyers in America”.

Recognized as a Mountain States Super Lawyer.

A member of the Top 100 Trial Lawyers.

Awarded a designation of a top attorney in the Mountain States.

Recognized in America’s Top 100 Attorneys.

Super Lawyers Honoree.
Education
University of Montana Law School, Missoula, MT
J.D., June 1983
High Honors

University of Montana, Missoula, MT
B.S. in Business Administration, June 1980
Honors
Bar Admissions
State of Montana
United States District Court of Montana
United States Bankruptcy Court for the District of Montana
United States Court of Appeals for the Ninth Circuit
United States Supreme Court
Professional Associations and Members
State Bar of Montana, Member
Montana Trial Lawyers Association
American Bar Association, Member
American Association for Justice
© 2026 Cotner Blackford Law, PLLC
321 W Broadway, Suite 500
Missoula, MT 59802
406-541-1111
602 W Lamme Street
Bozeman, MT 59715
406-541-1111