Sorry about you experience, we have all been there.If you’re unwilling or unable to figure out how to do this on your own, you can at least figure out material cost and work backwards.  

A lot of investors lose sight of the fact that the people on the other end of these transactions to rent and buy from them are actual people, doing what's in their own best interest, and they have a limit to how much they can take before it becomes more rational to go elsewhere, or to be unwilling, or unable, to pay a price that will make said investor as happy as the guy who bought 30 years ago and is selling now.

BTW, wholesalers who don't have the intent or means to  perform as agreed do not have a valid contract, so don't push it, if you're unable to perform and the seller wants out, smile and say next!        

An Auction sales Contract was between an estate attorney & entity buyer, the first entity buyer was unable to come up with the finances, and the 2nd buyer came into play. 

I had a client look into a heloc on investment, and he was unable to find anyone willing to do it.

We're cutting them down in the spring and replanting further away with a species that has a smaller root ball.  

The decline in rates offers another lifeline, particularly to homeowners who were unable to take advantage of last year’s record-breaking low mortgage rates.

Your only response should be in writing and very short:Dear Tenant,I'm sorry to inform you that we are unable to renew your lease.

I will be out of town and unable to attend but would recommend that you get established there as well.You can find the information at Nirea.org.Best wishes to you.Chris

If Joe and Jane default then that is not strategic that is lost of a job and unable to keep up with the mortgage payments and needing to move in order to live- You cant find a job for 2 yrs thats survival.