Re: In-Law Relations Before Marriage
when i got engaged, i used to give them a ring every once in a while but not often… Albatah, my mother and sister in law, used to call after every day or two.. As they have to keep me updated about the saadi ki tayari 
And i talked to my hubby-to-be (at that time) everyday for hours.
and i didnt go to their place before marriage, halanke my family visited them quite often.
And if there is someone ill at ur inlaws, give them a call and ask their haal chaal.. warna saari zindagi ka rona ke “US ne mujhay poocha hi nahin” 
which depends on the TYPE of your inlaws 
Magar if they and your family are liberal minded there is no harm in going but with your parents not alone.
But one thing, if your’e calling them make it a short call. 