That person is happy to take the listing, but since it is out of their area of expertise they don't really know how to market or price the property.3. 

I should mention I actually started by investing in my partner's flips and liked the model so much I began building a team of my own and we work together to get them rehabbed and sold. 

When I partner, the 'other side' needs capital (cash or the ability to get cash), expertise, or something of tangible value.

The fun answer is "very painfully" but the real answer is focusing on an area, knowing what I want to work with and what I don't, so I don't waste a bunch of time looking at things that don't fit my model.  

I am formulating a strategy to acquire a number of properties in the near future using 1 or 2 REPUTABLE turnkey companies(please hold comments on turnkey model, another discussion for another day).

It sounds like the Lone Star project is on the rocks as of yesterday, but the area is still being gentrified and increasing in value, so it might still be a good place to employ your model.

He is waiting for my offer before he lists the property.In my feasibility study, I am using a model that assumes there's a demand for 7-8 sqft per person in the area.

You will have people in your life who like you and will act as role models, but you won't have anyone holding your hand from start to finish.

But, very risky, and very difficult, and would require some serious expertise and skill with flipping, remote communication, an A+++ team you know and trust on the ground, with a GC who is completely on top of things, and completely trustworthy.  ...I have many years' experience in all areas of residential real estate investing, and personally, I would not attempt to oversee a rehab from a different state (let alone a different country).You also mentioned flipping--right now is a very risky time to flip (especially for inexperienced people).

Rob Beardsley has a great book which is esentially a guide as to how to write your own underwriting model called "The Definitive Guide to Underwriting Multifamily Acquisitions".