JamesI work with the loan programs through wholesale lenders so you wouldn't be able to go direct unless they have a retail side.

I then spoke with the buyer and his agent, suggesting we use a commercial lender I had worked with for over a decade, who could provide an answer within 24 hours, contingent on a new appraisal.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

The mold remediation companies should have the skills to identify the source, suggest a solution, and give you a bid with a guarantee of their work.

Any insight from those who have done this or those that suggest we don't take this approach would be appreciated.

If you aren't familiar with Baltimore, I would suggest it's a hard no and say that you are trying too hard to make cash flow happen talking Baltimore and tax liens and auctions.

My suggestion if your goal is to free up some equity to use for another purchase - start small with the single family home with a cash out refinance.

When calling or visiting, are there any suggestions to get them to expedite this? 

My suggestion is to find some real estate industry surveys (via CBRE or others) and look for the MF cap rates in various cities/states/regions.

If you are in the Tampa area and plan on purchasing there, I highly suggest you connect with @Josh Green.