my son is 18 and is gone off the rails a bit i.e getting loans and a new car, which i know he wont be able to pay off with the money he earns. i am very worried that if it all goes wrong are the det companies going to come after me and my house as he as put my address has the place where he lives. will i / my house get blacklisted or will the companies try and collect the money in recovering stuff of mine.
If the worst comes to the worst and people come to the house about his debts, do not let them in. If they are just from debt collecting firms they have absolutely no rights.
If they are bailiffs (who can only come if your son has had a CCJ against him and has failed to comply with it) they cannot come in unless they can enter through an unlocked door or open window. So make sure the doors are always locked & windows shut if you think there is any possibility of them coming. If possible, keep receipts or other evidence of your ownership of whatever possessions in the house are yours so you could prove ownership if you had to.
Bailiffs can take cars, but if your son's car is on HP it does not belong to him but to the HP company & bailiffs should not take it.