Tell me if I'm wrong...Our company has approximately 1,000 units under management, and we have a couple of our smaller clients that we have that present concerns with having tenants on month-to-month leases.

This seems to work much better than just getting frustrated with their constant questions and concerns.

What might be concerning is that labor, appliances and systems e.g. furnace, water heater, etc. probably cost about the same for a $50k prop as they do for a $350k prop.

Just to clarify I don't believe she's doing it behind his back, so that's not a concern at all!

I can't give you an exact cost to rehab a building like the one you described.My bigger concern is whether the cost, whatever it is, would be worth the effort. 

My concern is that if the properties are not as damaged as stated, then he will retaliate and ruin the property to where the repairs are surely necessary?

I work in a very stable industry and my company gives a raise between 4-8% every year so my income stream is a minimal concern.

My concern is on how to calculate property value due to vacancy concerns.  2 units are currently vacant, with 3 additional leases expiring by January 2021. 

If not, then why be so concerned? 

Should I be concerned?