Hi Chris,Start by networking through BiggerPockets, local real estate meetups, LinkedIn, and self-storage investor groups.

REI has the finest presentation in the industry in that regard I know when Chris walked me through a few years back I was VERY impressed and I have been around that industry since 2002.. 

The biggest reason I would advocate for mixed use is for the reasons you mentioned, the leases are longer, but also the general "issues" around tenants on the residential side don't come into play as much or at all. 

Asking 30k a door, I just did a drive by the other night but have a walk through tomorrow to get an idea of what is needed.

The easiest solution is typically keeping water away from the wall. 

Is he just wanting to dump the property or trying to maximize profits. 

Apparently, local jurisdictions here are saying they want more affordable housing, but in the same sentence will also say that there will be more regulations, more environmental protections, and more hoops to jump through to develop starter homes. 

I'm looking to build my network of investors and contractors and all the other in-between specialties.

AirBNB is a platform where you list a short term rental.Next, like others have said, it is a pass through cost and you should simply put in what the cleaner charges.

Instead, it files a Partnership Tax Return (Form 1065).- The profits are then “passed through” to you and your partner.