Dr. Ferrill is primarily involved in civil litigation with a special interest in representing veterinarians and other professionals.  Dr. Ferrill also handles administrative hearings, business formations, practice mergers, acquisitions and sales, employment matters and appeals.  Dr. Ferrill has represented parties on appeal before the 5^th Circuit U.S. Court of appeals, Texas Supreme Court and the 2^nd, 4^th, 5^th, 9^th, 10^th, 11^th and 13^th District Courts of Appeals of Texas.  He is admitted to practice before all four Texas Federal Districts and the U.S. Supreme Court.

Prior to attending law school, Dr. Ferrill practiced veterinary medicine for four years in Stephenville, Texas, and continues to maintain his license to practice.  Dr. Ferrill also manages the Ferrill Family Cattle Company in Comanche, Texas raising Red Angus seed stock in cooperation with the RA Brown Ranch and commercial Hereford cattle.  Dr. Ferrill operates Ferrill Farm & Ranch, assisting buyers and sellers of ranches, farms and leisure properties.