You may to buy them but getting a state/city specific lease that is reviewed by a lawyer is worth the cost.

On paper, a GC costs 10% to 20%, but it could be a lot more.  

He put paint on wooden floor and walked with paint shoes all over the property caused white marks and shades on the nice costly wooden floor.

Typical Project Management Fee for a GC General contractors (GCs) typically charge a project management (PM) fee of 10-20% of the total project cost.

Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

A 0% APR credit card is a smart move for materials, but for labor costs, you might explore a private or hard money lender, especially since your loan term is only 3-4 months.

What's the annual ROI on the cost of the points to you in terms of savings?

The reason people hesitate to pursue ground-up construction here is because it's costly, unless you're building a two-family home where you can live in one unit and rent out the other.

.: Quote from @Cameron Moore: Another example: the average roof in DFW is replaced every 6 years and the average cost is $40k.

@Moshe H.No, not all the time, but the low contributors do not wish to lose it.