Is it permissible for my husband to take out an interest-bearing loan to buy an apartment for my parents in Morocco, knowing that Islamic banks are not available, and my parents are living in difficult financial circumstances and need stability in a home of their own, provided that the apartment is registered in my name?

It is not permissible to buy a house with a usurious loan except in cases of necessity. The criterion for necessity is that a person cannot find a dwelling that meets their needs through lawful means.

So, if a person reaches a point where they are unable to provide housing except through a usurious loan, they are excused.

There are legitimate alternatives to usurious loans, such as Murabaha (cost-plus financing), Istisna' (manufacturing contract), installment sales, and Ijarah Muntahia Bil Tamleek (leasing ending in ownership). These can be pursued with banks, institutions, or individuals, provided that Islamic legal guidelines are adhered to.

If these alternatives are not feasible, and the questioner is unable to provide housing for her parents through a regular rental, then there is no objection to taking a usurious loan to avert this harm from them.