What shall we do to ensure happy and safe life ahead so the guy doesnt create any problem in future?
If you feel that this person is torturing your fiancee and compels her to marry him against her wishes, you take her to the top police officer's office, narrate the incidences, give a complaint in writing agaisnt him, explain the police officer that you are soon getting married hence to give protection from this guy as he poses threat to your peaceful marriage and the life thereon.
This would make sure that he wont interfere in future too.
-I would like to share the legal document which that guy has shared with me in photographs, how to do that in this forum?
No way.
You can fix a consultation with any expert laywer of this forum, on getting their personal detail, you can engage their services for scrutiny of the documents
-The girl is claiming that guy forced to sign a legal document which she signed after he forced her a lot. Can i trust the girl for marriage?
You have to first get that legal document and see what it is about
You can decide to rust the girl after ascertaining the fact of the document referred.
-If case is forwarded to court will it be solved there? Won't that guy create problems in girl's future marriage?
Who will take up this mater to the court and on what basis or case?
-What if guy arranges good advocate to win case for him or what if guy doesnt appear on court?
Where is the case and who will go to the court, when nothing happened so far, why do you stretch the imaginary up to court and its disposal
Let it first develop and you can decide after that.