I don't believe DSCR would be the right way for you to go on this until you've exhausted all of your conventional options (and I'm a DSCR broker/lender).  

Just to confirm I check the exhaust flue, it is warm and getting hot.  

It is a very protracted and complex case, but I shall summarize best I can:- husband caused the fire and committed suicide- insurance claim denied due to arson- wife filed bad faith claim against insuror under innocent spousal relief argument- insuror still refused to pay claim- wife exhausted all resources; abandoned further claims against insuror- city deemed property uninhabitable and issued demo order (lien)- property demolished along with the solar panels- husband was the sole lessee of record on the solar lease- wife submitted death cert to solar lease co.- bank just recently issued cancellation of debt to wife for 1st mortgage- wife wants to wash hands of it all and sell vacant lot to meMy discussions with the public adjuster I brought on the case was that since the property no longer exists, the solar lien is wiped out, but I'm not sure.    

We don't want to hand it over to the ones we did not like, as it may become more of a headache.If someone could advice what can be done next, would really appreciate it, feels like our options exhausted, but i don't want for the house just hang in there, eating interest.

I've exhausted my effort there..

We usually cut a permanent dryer vent in the wall and use that to exhaust it to the outside (instead of hanging a hose out the window, yikes again).If you don't have forced air in a property (meaning if you have hot water radiators) a mini-split system is one of the most cost-effective ways to cool a house.

Just mentioned this on another post, but agreed it's exhausting.

It's been exhausting at times...with waiting for the course to get to the point. 

I’ll try next month the seasoning time would have exhausted and update the masses

It was designed to provide additional Liability coverage if the underlying policy's limits are exhausted in a claim.