In principle, the husband and wife shall be jointly and severally liable for the repayment of foreign debts during the relationship, that is, they shall accompany each other, unless you have evidence to prove that the creditor has previously agreed with her husband that this is his personal finance. You can't ask the man's parents for compensation. If the house is not registered by the husband and the third person, it will be returned. However, if the property has been registered, the house can only belong to a third person. It is ultra vires for a husband to deal with the same property as his wife behind his back.
1, so if the wife pays off this part of the debt, she can claim compensation from her husband according to the divorce agreement or the legal documents of the court, and you can sue and get back your share of the house payment.
2. If the child is awarded to his wife, the court will award it according to the principle of taking care of his wife.
3. If a husband can conceal, transfer, sell off or damage the joint property of husband and wife, he can divide it less or not.
Basically because you haven't made it clear, I suggest you go to court as soon as possible.
I typed it word for word, I hope you can adopt it.