my mom is an isfj and my dad is an intp!
My dad is a very laid back intp though who rarely speaks (and when he does everyone kind of crowds around like it's an oracle speaking or something!) which probably helps the situation
I'd have to say that the easiest way to get along with my mom is to just go along with what her plans are- don't be late, be pleasant, dress for the situation and listen when she speaks! She's one of the nicest people that I know- I certainly know that I'd be signifigantly less polite if she hadn't been the one socializing me as a child, but she's very turned off by bluntness and bad manners.
From this, I drag this advice- treat an isfj woman the same way you would your elderly and beloved grandma and all will go well!