I agree with Brendan in that it is a very odd story.
Surely the parents know their own daughter by now? And three cars? Why would someone finance two cars and a jeep on the never never. If the embezzlement money or whatever was coming, why did they not wait for the money to arrive before shelling out on cars. Parents have their own responsibility too - they are driving around in new cars after all and were quite happy to take the cars when they thought they were Free. I dont buy into the she convinced her parents to get a new car routine either.
Time for parents to cut apron strings and just ask for the money for her own jeep. And either pay for their own or give them back.
As long as the parents keep paying she is just going to keep fluffing the stories. Can you drop the money around please. You owe me XXX and I need it now please. It will lead to a big row, probably, but otherwise they are just going to have to keep paying.
Or, return the vehicles under the half rule as Brendan says. My sister financed a car years ago, she was only in her very early 20's and living at home and the Bank wanted a guarantor (house owner) for the car loan, which my mum had no problem doing for her. Loan is long since paid. So I do not think that asking for a guarantor is odd in itself, but 3 cars?
Sounds like the daughter is waiting on King Who-Flung-Dung from Nigeria to deposit the dollars in her Bank Account.
I actually do not agree that people if they have given their permission as guarantor can just remove themselves from the loan. It is the whole idea of going guarantor. Parents guaranteed the money if she did not pay, and unfortunately for them, she is not