Sounds like you understand construction so get a good feel for needs (roof, porch, etc) and just build out in excel the aglow over time and when you need the big capex spend for these items.

I am new to the flipping world but I have a lot of construction background and I even finished half of my basement myself.  

If any one is an investor and needs help on their properties, lots of construction background.

For example, if your total construction costs (land, soft+hard costs, etc) is $150/sqft and you can sell your house for $200/sqft, then you make $50/sqft regardless of whether you build 1500sqft or 2000sqft.But what I have to assume is that at some point, the payoff is no longer linear and I'll begin to hit diminishing returns.

.), we can call it a "renovation" and you can avoid the hard money / construction / commercial financing. 

My Wife's a Property Manager and I'm a Construction Manager we've been in the industry 18 yrs each.

That is with a heavy construction background.

Regardless of what I had I felt more comfortable in the construction business.  

I came across a new construction in Newark with promising returns.

Joist is a construction app for walkthroughs we use.