Re: As u might know…
Your sister is in the UK and the guy in PK right? I assume you guys are going to a lawyer in a the UK? Just tell the lawyer the entire story and bring ALL documents with you (immigration document, marriage etc.). Any e-mails or anything written where your sister was threatened in any way by the guy or his family etc. Let the lawyer know why your family believes he will not sign the papers willingly. And then let the lawyer handle it.
I wouldn’t worry about getting the money back. You already have a guy who may not agree to the divorce…trying to demand for money or any other material items will most likely only delay the process. If I were your family, I’d let the lawyer know that the ONLY thing you guys want is a divorce finalized as soon as possible.
LOL @ #2. Why don’t you guys get the divorce finalized first before worrying about her marrying again. If and when she gets married again, and IF at that time her ex-husband causes problems…then worry about it then. There’s nothing the lawyer can do right now to prevent all that.