I currently am a mechanic/commercial truck driver that is determined to be financially free!

My Grandpa did not have a will, so it had to go through that whole process of determining if he owed any debts to anyone, etc and that took a long while.

And how do I determine the cause of the mold?

(Hard part) determine value adjustments for each difference (1 more bedroom adds $5000 to value, 300 less square feet subtracts $15,000, etc).  4.

Aside from the obvious of looking at Facebook marketplace for rental rates, does anyone have suggestions on the best way to determine what I should expect this home to rent for?

Based on what I determined during due diligence:The annual vacancy cost was >$3,500/Yr.Maintenance was >$300/Mo. or $3,600/Yr.The cost to make each of the units livable was about $15,000 each.There was no way to raise the rent even if the units were beautiful.

Should someone "running the numbers" of a multifamily property include management fees when determining NOI to determine cap rate?

So, basically, the Tenant forfeits his Security Deposit to the Landlord.You should seek legal advice, or at least review your State's Landlord and Tenant Laws and your Lease, to determine whether this procedure is appropriate in your State.I hope this helps you.

The lenders use it to determine eligibility so why shouldn't you?

It was determined it needs repairs and parts are on order.