Legally, on a used car, probably none. There may be "lemon laws" on new cars but not on used cars. If you take it "as is" you get it "as is".
Yes, you have all the rights listed on the contract when buying a used car.
If you did not sign the contract, then the car does not belong to you. However, they can charge you a daily rate for having the car (as if you had rented it).
yes
Yes, you should get the car after you sign all the papers.
i just bought a used car. Do i sign my name where it says purscahser
You signed away those "rights" when the title was assigned into the name of the former friend. The only way to revert things back on the title, is for the former friend to "sign off" as owner and for you to "sign on" as buyer - then take the ownership document to your local Motor Vehicle office and have the title legally changed to your name.
What ever you can get in writing from the owner.
sign the title over to the person buying the car
I just put a sign in the window of your car.
The car dealer cannot take the car if it is paid for according to the contract. The dealer cannot change their mind and take back the car after the contract is signed and money has been exchanged.
yes because you have rights to the car also
The moment you sign the contract, have financing, and they hand you the keys. The car is now yours.