If it is a habitability issue like leaking sewage, you might be able to get the building inspector or health inspector involved but an unethical landlord might retailiate.

You seem like a more sophisticated investor who understands the question of the health of the general economic atmosphere.  

Obviously, I overlooked it during signing the counteroffer, and had no idea the pain it would cause.

I'm curious, what pain points are you all experiencing?

Just like with anyone, find out what their motivation/pain points are then how you can address that.

Lenders still remember how painful it was to foreclose on assets during 2008, and are doing their best to avoid this scenario again.

Time is my most valuable asset, want to have a casual meeting monthly where we discuss pain points and solutions.  

It is considered one of the most reliable barometers of the health of the US economy going forward.

if this is a single family home the lease should have a clause starting the tenant is responsible for all pests 30 days after they move in.understand the tenant may call the city inspector about this issue and because this is health related they will most likely make you pay for it.

Also, we know from the inspection that one unit is likely a health code violation due to the tenant’s living conditions.