2. Bad credit records really need five years to be eliminated. It means that you can't borrow money to buy a house within five years, and you can't use a lot of credit products.
3: Just sign the letter of understanding. Ask him how much he is prepared to pay first.
4: Is there any credit card debt?
The purpose of signing the letter of understanding is that you gave up the opportunity to send him to prison. Nothing else.
6. Civil litigation requires you to go to the local court to sue, which has nothing to do with criminal knowledge!
7: You can see how much he pays first! I suggest you ask the bank first, how many bad records does he have and how much he owes each time?