Whereas if you and the other investors held ownership as TICs (Tenants in common) then you could sell your portion and do a 1031 of your portion while others did something else. 

Let’s break it down and explore how you might approach this idea, the challenges you could face, and ways to structure a deal that could work for both you and the landlord.Why the Landlord Might Be Open to SellingThey’ve moved out of state for health reasons and don’t have family nearby anymore, which might reduce their emotional attachment to the property.The idea of simplifying their life and pursuing something like sailing around the world suggests they could be open to letting go of the property if it helps them achieve their goals.With significant equity or potentially owning the property outright, selling could provide them with a substantial cash windfall to fund their future plans.However, their belongings on the property could signal hesitation to let go or simply a logistical barrier they haven’t addressed yet.

Quote from @Anil Shah: Quote from @Derek Brickley: Pretty common, you can definitely use commission as down payment conventional loans and not have it count toward IPC as long as you're on the loan. 

They didn't know each other before moving in but they all have something in common and they are all grown adults.

It also addresses a common misconception.

The idea is to convert a multi-family building into condos; but not in the traditional sense where you separate pre-existing apartments into their own condos; but in a way where you combine the common areas of all of the apartments in that whole building, and turn the individual rooms within those apartments into condos themselves; thus transforming the hallways, kitchens, bathrooms, living rooms, dining rooms, porches, balconies into common areas of the condos. 

Approved Septic System Design from Lee Health Department (8-12 Weeks) The clock for the commencement of construction starts once the slab is poured and approved by the city inspectors, this is detailed in Section 8 of your build contract.

The fear of renting while out of town is common, but it's easy to overcome, especially when you have friends and a handyman.

Or, what’s something you don’t hear discussed often that could help me avoid common pitfalls?

The last time I represented a mobile home park purchaser, county health department allowed four MHs per septic tank.