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I don't see anything complicated about your case. If your business is separately incorporated, but it has no assets, then you can just wind it up, dissolve the corporation with the Secretary of State and tax authority, do a personal Ch. 7 and you're done. And, if you're business isn't separately incorporated, then it's still just a straight Ch. 7.
Unless I'm missing something, because you're not disclosing it, find a local bankruptcy atorney and you should be good to go.
Not really, unless you will be receiving substantial assets from the company in liqidation that would change your personal situation. Otherwise, I still don't see a problem.