I know the sort of humor you're talking about. The late British comic, Les Dawson, did Mother-in-Law jokes, but the 'alternative' comics that were eclipsing the 'old guard' really loved him. Also, he really loved his M-I-L and I think that came through. Plus, he was so well read and intelligent. If he's never been on your radar, maybe check him out.
I know the sort of humor you're talking about. The late British comic, Les Dawson, did Mother-in-Law jokes, but the 'alternative' comics that were eclipsing the 'old guard' really loved him. Also, he really loved his M-I-L and I think that came through. Plus, he was so well read and intelligent. If he's never been on your radar, maybe check him out.