All you need for a bill of sale is a simple sentence saying on x date I xxx, sale vehicle xxx, with vin number xxx to xxx person. Then write the driver's license of both parties and sign. A lawyer is extreme overkill for such a simple transaction.
By the same logic, a hallucinating LLM is also overkill versus just doing the simple task yourself and not needlessly adding risk to it.
The point still remains: let's see what the LLM delivered that the user actually used. Either it's legally binding and an appropriate use, or it's not fit-for-purpose.
Equally, why not an interactive form using conditional logic? No hallucination possible. Much more simple and reliable.
> All you need for a bill of sale is a simple sentence saying on x date I xxx, sale vehicle xxx, with vin number xxx to xxx person.
If you know this, you don't need GPT.
If you don't know this, you don't have a way to assess GPT's attempts at a contract. A bill of sale is indeed simple, but there's a lot of more subtle legal issues someone might run into in life.