You may end up needing to go through the whole foreclosure process which can take a lot of time and cost a lot of money, and you may end up getting the property back in much worse condition than when you sold it, potentially with a squatter in it and months of lost rent, and in a worst case scenario you will be in a much worse position than if you had just sold it outright. 

Over 1 month with 124 Zillow potential tenant contacts, the property manager report showed no leads from Zillow and couldn't find tenants.

Before you decide to pull the trigger with any Bank/Lender make sure the they are well versed in DSCR guide lines and close more than a couple a month. 

My suggestion is to build a spreadsheet and include the net cash flow to you for every month of the deal, then use the IRR function to figure out your return. 

They claim to furnish properties for 2-3 times the usual monthly rent with the help of their "designer team" , but the actual costs are 5-7 times higher.

If you carry a balance month to month (only paying the minimum or minimum plus), paying twice monthly can save you some money in interest charges.2.

My second question is do I get a more energy efficient and raise rents but now include heat in their monthly rent?

Is there a place where I can type in the address of the properties I am considering, and it will spit out an estimated monthly rent? 

You could arrange payments with them (eg $1K a month for the next year with interest).

This month we have placed three opportunities with investors looking to balance their portfolio.