The only option I have found is the one made by SaniStar, and it is fairly expensive. 

With the Income Approach, the appraiser is going to evaluate the income and expenses of the property to develop the Net Operating Income, then they'll apply a market Cap Rate to the deal.

It's up to the City and their zoning/planning requirements.

@Itay Heled, in my part of Pennsylvania most municipalities have this sort of requirement as part of their rental ordinance.

Last year I barely made any money after all expenses were paid.

IRS requires 4.9% interest for tax purposes on an owner financed sale.  1.

The nice thing for you with a 1031 from that STR to an area like this is that you'll lose a lot of monthly expenses that LTRs usually pay. 

Income-expenses. 

Any other equity would go towards the expenses due and you as the former deed holder would get the balance of the equity depending on the price paid at the foreclosure sale. * Note * In a foreclosure due to your default…your lack of being responsible for the monthly payments would leave a negative entry on the Seller’s credit report for 10 years.

A sign must be posted on the interior relating various information required by the city.