R. Rex Parris Law Firm R. Rex Parris Law Firm - Personal Injury Attorney - R. Rex Parris Law Firm With $1.1 Billion recovered in 30 years, you can rest assured knowing your personal injury case is in the right hands. From car accidents to employer wage violations and defective products, Lancaster’s premier law firm is prepared to handle your case. Call Antelope Valley’s largest law firm today and receive a FREE case evaluation.