Those that do cover that will want to know the age and construction (they will be looking for newer tanks with fiberglass construction probably).If you are worried about the coverage of a potential removal contractor just ask them to send you a "Certificate of Insurance" which is a snapshot of their limits on their policies that day.

., renter's insurance with $40,000 of contents coverage and $100,000 of liability coverage typically costs $19 per month.

@Maxwell Lee Take plenty of photos/video right before move-in, and definitely do a comprehensive walk-thru with the new tenant where the condition of the entire home (i.e. every room, interior, exterior, etc) is well-documented and agreed to.Then, if there’s any dispute later, you just refer back to the original document where they signed and agreed there was no damage.

Also, do they consider DTI and personal finances or is it solely based on the property's debt service coverage ratio (DSCR)?

Much of the world has decided this is unsafe and there is not an easy fix.This is not a comprehensive list and there is definitely some regional (Midwest) specificity but the advice is sage nonetheless.

Also, is there a comprehensive list of custodian's and are there specific questions I should ask? 

Debt service coverage ratio must be a minimum of 1.25.  

On the commercial lending side, you will also have debt service coverage ratios (a ratio of net operating income to your debt service) you will need to hit, that could potentially limit loan amount.The other piece is the appraisal. 

Is your insurance coverage escalating as you grow.  

With 70% credit you’d have to be close to 80% coverage on to the total payment with one side rent.