If I put myself in the shoes of the outside partner/investor friend, I would be very concerned because: 1) unclear and/or potentially conflicting business plan, 2) even with clarity in the BRRRR business plan, unclear in the viability of pulling it off with these market conditions, 3) the chances of dispute seems very high, especially if you're going to live in. 4 years ago, I went through a  similar thought process when purchasing an investing property with mainly my family money, while considering an outside investor to rehab for higher STR ROI... 

There is a flaw in the business model and thier internal processes need a lot of work.First the good,Yes, I got paid every month.Nomad found me good renters.Next the badDue to needing to make the guaranteed rent they rented my unit below market valueIn communicating with Nomad they were disorganized, often sending conflicting messages and not alignedNomad offered to find me a repair company, that compnany charged $400 for a $25 dollar part and I was stuck with Nomad saying "not their problem" and the vendor saying Nomad was the client not me.Nomad was horrible to my renters as their property management term ended.

@Cheng ChuMcKinney is a fantastic market with strong population growth, and it’s a great choice for single-family home (SFH) investments.

Market Conditions: South Florida has a dynamic real estate market.

It's very difficult to find off-market deals with predictable upside opportunity.  

I have 0 experience ground up construction loan program nationwide that does NOT require GC to sign anything, only provide proof of 3 C/O's (certificate of occupancy) over the last year I.e. built received occupancy permission now unit is on market or habitable. 700+ FICO I can get you 80%LTC loan to cost on the project on ground up construction for 1-4 units.

I like working with lenders who are familiar and reputable in the market you are investing in.

Quote from @Tanner King: Where are the best places or best ways to collect data on specific markets?

Hey All, I’ve found an off market duplex in need of some repair (estimate unknown as I haven’t been inside yet).

This is not yoursituation, but just to walk through the different thought processesin Holding/Selling that a friend of mine is going through.Helped my friend getinto the Self Storage business and walked him through the wholeprocess from evaluating the market, selecting a site, developing thesite, systems, financing, insurance, etc.