first of all family class (after u two get married) is exempt from the financial expectations.She can (like PMM said) make 12 dollars a year and still sponsor you. Not sure about the bankruptcy though i heard or read somewhere that you have to be discharged but not sure for how long before she can sponsor you.there are a few ways you can do the sponsorship once you get married and her bancruptcy is cleared, you can do inland or outland. outland is quickest and you can be with her for a 6 month stint while processing, but if ur visitor visa runs out u have to go back and propably wont be able to come back until processed for perm resident. inland take a lot longer about a year or more and you cant work until you get AIP (approval in principle) which takes about 6 months or so. read the cic website on that
http://www.cic.gc.ca/english/information/times/index.asp .PMM can tell you better about the bankruptcy aspect in all this. she cant be on any welfare or social assistance, i do know that.ill look more into the bacruptcy and let you know.
and of course i am not an expert on immigration so what i post is only from what ive read, heard or experienced myself. So please look for other posts to confirm what i put here.:)
ok on the sponsors guide in the immigration packet for outland applicants page 8 of 32 it says she can not sponsor you if she is in an undischarged bankruptcy
http://www.cic.gc.ca/english/information/applications/fc.asp