How many months pass due can a car be a repo?
Depends on the lender, the agreement you signed, and the state you live in.
If you aren't paying for that car's payments then yes. The only reason why your car should be repoed it because the payments aren't being made on it. It doesnt matter if your car is from the 1940's or if you brought the car last month, the car can be repoed if you dont pay the payment for 2 or more months (consult dealership for it's repo rules).
Some places have the ability to take your car away if you don't pay car lot fees if you are trying to sell your car on their lot. If you didn't sign a contract through them, then they can't repo your car. They will most likely tow your car off the lot and you have to pay expenses on it. If you signed a contract where you must leave your vehicle on the lot for…
Can you have the repo man get a car that is taken by someone who borrowed it and moved if you only have their drivers license and SSN?
It depends, usually the repo man will come to the dealerships and tell them a price they'll repo a car for. The company I work for charges roughly $150 a car, but if we have to go unusually for to get the car the price goes up accordingly. Like if we have to fly out of state to get a car the dealership pays for the plane ticket plus a few hundred.