I have heard many stories from co-workers of their success.

I personally went down to Metro to get a building permit because I wanted to make sure what I wanted to do was even feasible for our property, zoning restrictions, etc.

workmans comp, make sure he and workers insured

To do work you would want a permit.

I don't think I've overpaid/underpaid taxes either because I read the rules and deduct repairs as repairs, capitalize improvements, deduct business mileage as permitted, etc.

But remember there's 70% of people who are terrible at what they do and 30% who are amazing in any occupation. 70% of agents, rehabbers, McDonald's workers, property management companies, etc. are terrible at what they do.

If its an area with more modest but still well-maintained properties but a slightly lower income area (more factory or other blue collar workers, but still stably employed) then you're looking at more of a B- neighborhood.

I'm purchasing a 4-unit property to redevelop with a bridge loan for pre-development and then will be getting a construction loan after we're permitted by the city to redevelop a new 10-unit in it's place.I'm pitching a partner to put up 60% of our down payment for the construction loan.  

Do they have strict rehabing policies or permits?

Due diligence with the city has led to the understanding that I can build up to 3 additional units in the back of the lot, with a building permit, as long as we meet development standards, setbacks etc.