I am 32 years old with excellent credit and less than 10k in consumer debts (truck note). 

Maneuvering through tightened guidelines has not been the easiest thing, for consumer and lender/broker, whether it's conforming or whether it's bridge money.Are you purchasing strictly investment on that 3 unit? 

Ironically I just finished reading house hacking and it's last chapters dealing with tenant screening. 

Probably 4 SFHs with the same capital used would yield higher return BUT SFH proving very time consuming to find.

They are all old, pier and beam, caste iron, aluminum wires, the whole 9 yards.  

A realtor is great, but they have a dozen other irons in the fire and are not focused on JUST selling homes in your park. 

Or even work as property manager altho could be time consuming. 

I believe mobile homes are regulated as consumer goods and not real property. 

So is not honoring your word.And asking private property owners to fix your homeless problem is wrong...and ironic.

And in your free-time, consume as much reading material on the subject as you can.