ما هي شروط الزواج في حالة غياب والد خطيبتي؟

Salam

The missing person shall be regarded as dead. His wife shall observe the waiting period of death from the date of his death judgment.

And his estate shall be distributed among his heirs present at the time of the issuance of the judgment.

You should file a case for considering the death of your wife's missing father.