OK it's Education time, pull up a Seat:
When you mention legal action to anyone in the automotive trades, from the guys at GM Board of Directors, to the lowly salvage yard parts monkey one thing happens:
Any and all co-operation evaperates. People as a rule hate the mear mention of involving police, officers of the court, lawyers, and having to go to court.
Big wigs at a Automaker have Legal departments to turn a mess over to. No skin off their nose. Large Towing & Salvage Yards usually Have a Lawyer they use, if only for advice. Yet that lawyer will normially be happy to repersent them in court, and do a professional job of it.
The smaller the place, the worse it gets. Where any verbial agreements are null & void (he said she said arguements ). Unless you got papers proving things, the customer rarely comes out on top.
The last Customer who mentioned Legal Action with me got that responce. I stopped any and all work on their car & the replacement engine for it. I put the car outside in the back row b the fense, left the engine on the stand in a as stopped shape and waited. Then I waited. Waited some more. After 2 years I considered the car abondond and filed paper work.
The Whole problem came down to the Customer. Costomer Did something silly, then got un-realistic, then started threating. Even at the Un-realistic stage I was going to finsh the car, plus the added expenses I was likely going to eat. Once the threats of calling the sherrif, threats saying I better have titles for all my cars, ect. Threats of taking me to court, generial harrassement visets, and the rest of the B.S. Everything shut down. I informed my land lord (who controlls access to the property) that said customer was not to be on the property, unless accompanied by a State Highway Patroll or Sherrif. Since my landlord also does car storage, I informed him that there was a debt owed to "bail" the car out, and to start storage at $30 per month. Legally with recipts for materials purchased, banishment from the property, and storage paper work, I covered my ass.
Basically with a Bill of Sale marked Parts Only, No Title. He Covered his ass. You have nothing more then a Parts Car.
Maybe you aught to go and ask as nice as possible what it will take to get the C.O.D. You might even offer him extra money to get it. Just stop right away with the talk of court, witnesses, ect. Charles