Were you aware prior that there was mold?

I was in commercial real estate prior to that and am ready to take the plunge into making money for myself instead of others.

Assuming everything else is rock solid and you made the transfer to the LLC prior to any issues, I'd say you're okay even if you have the conventional financing still in place. 

If you go the auction route, be sure to get a title search prior to bidding.  

Ask and verify this prior to spending your time meeting them at the site.

It's best to hash out the exact terms (i.e. interest rate, term of loan, total loan, purchase price) prior to engaging the attorney to draw these items up, but you can also pay the attorney on an hourly fee to help negotiate and explain all of these terms to the both of you.

You will want to get the title search done prior to getting it under contract.  

They may just be pedantic pinheads, or they be intentionally obstructing the sale in an effort to assist the prior owner, who still lives in the property.

If you will be relocating in the near future remember that a 30 day notice is required prior to the end of the month..."  

Its typically the buyers responsibility to pay for it but it also depends on the chain of title (how the property is transferred) and any prior agreements.