Update -
I just got back from speaking with the owner of the car. I do not have the title in my possession. I did, however, accomplish getting that extra $100 taken off the price, and I have the tag back on it under his registration.
I could not get the title from him because in signing the title over to me, he legally has NO pull over the car anymore. If I chose to stop making my payments to him, even in court he could do nothing about it, as I could say I've already paid him. We have a mutual friend who works for the South Carolina Department of Public Safety and has taken the Police Academy courses and is getting some sort of degree in law. He knows his legal stuff and looked into the issue on the behalf of both of us. He said there was no way I could get the title.
Getting my $3000 back was out of the question, as the seller's fiancee already spent $2000 to pay off credit cards.
I do feel better about the situation though, having asserted myself and getting a tag back on the car. I have been assured that with proof of registration, insurance, and my own license, I will not be hassled...especially with the bill of sale which is good for 45 days.
I wish I had the title but that is pretty much out of the question. I pointed out that I'd paid over half the price of the vehicle and he pointed out that if I were buying from a dealership, I wouldn't have the title anyway.
So I have 14 payments of $140 to make, and the registration/plates on the car are new and updated. That was my biggest concern.
Thanks for the input.
