But, most seasoned investors use some reasonable estimates for each using percentages of gross rent. 

However, the two reasons LLC exist are (1) to produce a “remote entity” that doesn’t have the compliance complications of a corporation so that it’s relatively easy to comply and very difficult to prove an LLC is a persons “alter ego” (thou nowhere near impossible) and (2) to provide a remote entity that qualifies for “pass through” taxation benefits.  

It seems too good to be true and I am currently trying to research the company.  

Reason for that is because if you were to get the construction financing for it, the bank is going to look into the operator's (you) experience in the field and whether or not you have a track record of knowing what to do. 

Something to keep in mind while you renovate: I suggest you have multiple strategies planned out and what your outcome would be if you had to pivot for some reason.

Typical investor presentations typically start with the projected overall returns, which almost any model will provide (in fact that is effectively the whole reason they exist), and often a hold period summarized pro forma, to show a bit more of the details that flow into your returns.Again, I think you should hit up Adventures in CRE.  

To be a solid negotiator you need to have a firm understanding of the true costs of services.

The reason that I say these two is because you are going to need a lender on every transaction (except for creative deals).Also, an agent will be the one to open doors for you as they appear.

@Corey Conklin, the lease with an option to purchase is tried and true.   

I understand what you're describing about your wife - does she try to help her investors find a home, rehab it, place a tenant and then try to flip it, or does she manage the property for the investors to provide true hands-off, passive investing?