Quick info - Friend (F) and Girlfriend (G) own a vehicle that F purchase/paid for in full. F put G's name on title. Vehicle is titled as F OR G. F & G break up. G wants to sell the vehicle to Dealer. Delear buys the vehicle. G gets the money.
I know based on Florida law (Fla Stat. 319.22) that "When a motor vehicle or mobile home is registered in the names of two or more persons as coowners in the alternative by the use of the word “or,” such vehicle shall be held in joint tenancy. Each coowner shall be deemed to have granted to the other coowner the absolute right to dispose of the title and interest in the vehicle or mobile home, and the signature of any coowner shall constitute proper endorsement. Upon the death of a coowner, the interest of the decedent shall pass to the survivor as though title or interest in the vehicle or mobile home was held in joint tenancy. This provision shall apply even if the coowners are husband and wife."
My friend knows that the ex-girlfriend had a right to sell the car without his signature but does my friend have a claim for the money she received for the car?????? Or is he out of luck!!

