Medical Malpractice

I would strongly recommend that he has a complete shoulder work-up by another orthopaedic surgeon to determine exactly what is wrong with the...

Legally? Sure. You can sue anyone. If these are the facts, however, you will lose. Juries hate people who start fights, as a rule.

Theft of services from a customer that never paid me over 2300.00 she knowingly ripped me off as she know she could not pay me

You could file a lawsuit against this person for fraud and civil theft. You can recover triple damages and attorney fees. One problem may be...