How would you approach the problem? 

I can't see the investors who are looking to rent from landlords; I have never had an investor approach me regarding renting one of my rentals, on a quest to sublease my houses.  

I guess I’m just trying to figure out the best approach to grow a business that will allow me to retire in about 10 years.

Looking and hoping to receive some advice from more experienced individuals on here on how to approach other investors in regards to mentorship.

I’d just call/approach the guy with WTF are you trying here?

So a short while after the demo was completed, he approached me with a flip opportunity. - We struck up a deal to buy the flip.

(4) any recommendations on whether we should approach corporate banks vs. credit unions?

2-4 unit properties are convoluted with more than one valuation method being both the income and comparable sales approach.

However, when I approached my acquaintance, they mentioned their rash frustration with a previously failed attempt at finding a buyer in years past when using other realtors, and have refused to sign a contract unless a buyer is found first!

After speaking with maybe 12 or 13 different lenders in the area (and being rejected by all due to the property type) I approached the seller and informed them, politely, that the property would not sell unless someone was able to offer cash.