He is. What he comes to the marriage with is his, including debt.
Yes. He has children from that marriage.
No. In all states, the property cannot be taken if it was purchased before the marriage.
Your husband is a polygamist. I would suggest that you see a lawyer and go from there.
It depends on what country you are writing this from.
No, your husband is not responsible for financial problems before the marraige.
Don't. Honesty and communication is the most important part of marriage.
No. If you remarry before your divorce is final, then that marriage will not be legal, and you could be charged with bigamy.
you cant have sex before marriage because its is something to be done between a husband & wife which means their is no such thing as girlfriends & boyfriends in Islam
No, however if you hold any joint assets, before or after marriage, such as a home, car or bank account they can be garnished or levied by the creditor regardless of who else is named on the asset.
Do you mean 'divorce'?--legal end of the marriage?