hi. i m from Pakistan. My sister was married in 2012 with a pakistani person having US nationality. he is in New york city. before marriage they committed to bring my sis to USA after two years but after marriage he denied and told due to financial issues and visa problem he will not bring her upto 5 years. he went back to USA after 2 months of marriage. he didnt give my sis monthly expenses and on her insist rarely send her some money. this year he visited Pakistan for 3 months. during his stay we talked him to bring our sis with him. he refused and then mentally tortured my sis. after return to USA, on telephone call he gave my sis divorce.
now my questions are:
1- do we have any legal option against over ex brother-in-law about mentally torturing her and our family?
2- as a muslim we believe if husband gives verbal divorce, it is equivalent to documented but we also need documentation of divorce. he is trying to avoid documentation. please advice about this situation. can we send him legal notice from pakistan?

