Is it permissible to renew a husband's residency permit that was obtained through a forged certificate, and is it permissible for the wife and children to join his residency given strong impediments to returning to their home country?

The permissibility of the aforementioned procedures depends on the laws of the country. The general rule is that lying, forgery, and deception are forbidden, unless there is a recognized necessity that cannot be averted except through them. In such cases, they become among the prohibited acts that are made permissible by necessity.