I was born and raised in Denver, Colorado. Upon graduating from South Texas College of Law in Houston, Texas, I returned to Colorado. 

During my time in law school, I worked for a notable firm that primarily practiced immigration law. While working for this firm, I assisted in the preparation of the research, writing and oral arguments before the Fifth Circuit Court of Appeals and the United States Supreme Court. 

For my hard work and dedication to immigration law, I was awarded the 2015 Lyndon B. Johnson Civil Rights Award from South Texas College of law. This award is given out to one student each year at South Texas for their commitment to equal justice under the law.

Upon returning to Colorado, I worked for a large Denver law firm concentrating primarily on Immigration and Criminal Defense. I left the law firm to establish The Law Office of William J. O’Donnell, P.C., to provide the highest quality representation, with a more detailed and personal approach.

My practice areas consist of Immigration Law, Criminal Defense, Family Law, Estate Planning, and Federal Appeals. I enjoy handling complex immigration issues and representing clients throughout the state of Colorado.

Education:
Juris Doctorate , South Texas College of Law 2015
Bachelor of Science, Metropolitan State College of Denver 2011

Licensure:
State Bar of Texas:
Bar Number: 24098191
Colorado:
Bar Number: 49587

Credentials:
Admitted to practice before the Supreme Court of Texas and Colorado.

The U.S. District Court of Colorado.

The U.S. Tenth Circuit Court of Appeals

Awards:
 Lyndon B. Johnson Civil Rights Award 2015

Notable Cases: 

Mata v. Lynch, 135 S.Ct. 2150 (2015)

Mendez-Mendez v. Holder, 13-60293 (5th Cir. 2014)