Pretty sure (but I'm not an expert in the least) that Joe Villeneuve, and others, are gonna say cut your losses and make sure the next deal is a good deal, and reinvest and treat as expensive lesson learned. 

Treat it just like any other lease, and clearly stipulate lease amount, security deposit, time period, who pays utilities, lawn care, etc.

Here's the overwhelming likelihood:IT'S NOTTo keep things straight, no home is perfect, few are truly one of a kind, and it's very easy to get emotionally involved with a home and stop treating it on its merits.If you're considering this as an investment property then let the numbers tell the story. 

The key is that you sold in your name, so the purchase of your new replacement property must be in a way that it is treated as if you bought the property for tax purposes. 

That is something I would need to consider going into this if I am treating it as a business - figure out how to raise the long term tenants rent, if it's really worth doing so, and if so how can I do it slowly and not all at one time to help them out.

They are treated pretty much the same way art is to an artist. 

Even if you treat them, they come back again.

You may be talking to a loan officer who is treating you like you are buying your personal residence.Talk with a mortgage broker that deals with investors and avoid banks. 

But one more time: it may be a wrong way to treat your project.

Typically once found and treated an annual inspection can be done and re-treatments can be done early into their repopulation if it happens.However. . . often the damage lies under the surface and is difficult to assess.