Ranz Injury Law: South Sound’s Personal Injury Law Firm of Choice. Ranz Injury Law is a personal injury and accident law firm in Federal Way, WA, managed by Attorney David Ranz. We are dedicated to helping adults and children who are injured in an accident. There is power in your story, so we listen to you without judgment and fight tirelessly on your behalf. Your initial consultation/case evaluation is free with no strings attached. Attorney David Ranz will listen carefully to you, ask questions, and give you an honest assessment of your case.