Is it permissible for the father of the man to see his son’s fiancée?
Question

                Is it permissible for the father of the man to see his son’s fiancée?
Praise be to Allah.
    It is not 
    permissible for the father to see his son’s fiancée, because she is a 
    non-mahram to him. It is only permissible for his son to see her with 
    special permission from sharee‘ah, in order to create harmony and affection 
    after marriage. But no exception has been narrated with regard to the man’s 
    father; in that case the original prohibition on seeing her remains in 
    effect, and she is like any other woman who is a non-mahram to him. So he is 
    enjoined to avert his gaze from her, not to be alone with her and not to 
    shake hands with her. 

    But when his son 
    does the marriage contract with his fiancée, she becomes his wife, even if 
    he has not consummated the marriage with her, and even if in your country 
    she is still called a fiancée after doing the marriage contract. This 
    customary naming of the matter does not affect anything, so long as the 
    son’s marriage contract has been done. In that case it becomes permissible 
    for the father to look at his son’s wife, because she has become a mahram to 
    him, as Allah, may He be exalted, says (interpretation of the meaning):
    “Forbidden 
    to you (for marriage) are: your mothers, your daughters... the wives of your 
    sons who (spring) from your own loins” 
    [an-Nisa’ 4:23]. 

    And Allah knows 
    best.