There might be a design build firm in the area but usually they do smaller residential project.

IF you have experience and have the means to pay for project managers or other someone who can be your boots on the ground, great. 

If it's a huge project, I'll need to make say at least 50k?

Regardless, if you are interested, we are doing a bus tour of some local projects on Saturday.

Your profit projection uses “TV investment math” and that makes it very wrong.  

I have had an inner battle since day one when planning/projecting future business growth.

Projects like these seem to always cost more than you would expect. 

I will give you some examples of what I have negotiated on current holdings and also am in discussions with a much larger project that includes a national lender.Local community bank refinanced December and then again in June both 7 year fixed money. 

For instance my lender will do a loan for BRRRR type projects for 50/50 owners, 30yr AM, and very competitive rates, with zero seasoning. if you leave it in one individuals name, both title and debt, it'll be much harder for you to claim a vested interest.

If they have to do a u-turn or do multiple steps to get into a place it is a major deterrent versus a middle turn lane without a concrete median.Check any road widening projects in the area as that could take existing parking spaces from the property you are looking at by eminent domain.