Is this a good idea, and if so, what are some pointers you can give us to execute our plan successfully?

Now the current staff are promoting around .8%.   

If your payments every month after you receive rent from your tenant is less than what it would be if you were to rent you are executing this strategy correctly. 

A system I  can pass off to the management company and they can execute.

Is there a way to just pay out the investors that don't want to 1031 at the end of the hold period, and execute the exchange with the remaining group?

I take my time putting my team together so that I am confident that we will be able to execute all facets of the BRRRR.

The companies provide the staff, I just rent the houses to them.

The place is very obviously currently occupied.)Later, the letter says "a member of our staff will contact you in a few days."

The part of the contract that worries me is that the mortgage contingency was checked, and does not appear to have language allowing a unilateral change - "this agreement will not be altered, changed, amended, or modified except in writing executed by both parties".That said, the contract also states that the seller "will have all heating and all utilities (including fuel(s)) on for all inspections/appraisals".

Full executive summary available upon demand.