What is the ruling of Islamic law regarding the inheritance of a house that was acquired through an interest-based loan and life insurance from non-Islamic companies that paid off the remainder of the debt?

The question comprises two points: purchasing a house with an interest-based loan, and life insurance. An interest-based loan is forbidden in Islamic law, and the borrower incurs sin because of it, but the ownership of the house is valid. As for life insurance, it is not part of Islam due to the presence of gharar (excessive uncertainty/speculation) and the wrongful appropriation of people's wealth. Its contract must be annulled. The heirs have a right to the value of the installments paid by their deceased relative and what he paid for insurance. Anything beyond that is the property of the insurance company, unless they permit the heirs to own it.