What is fair compensation for a project manager.

[Leigh C]

What would you guys consider fair for an "employee" who handles all the hiring/inspections on a rehab, never uses a brush or lifts a hammer.    Lets assume this guy handles 4-5 at a time and takes longer than an owner would to complete the flip but a reasonable amount of time for an employee to do it.      He isn't a GC or has any special training.    He just was at the right place at the right time. 

Lets say out of the 5 flips, 

2 of them are light rehabs (minor repairs of a day or two and lets say carpet) 3500ish , 2 of them are 3-4 days of repairs with carpet/paint, 5-7k.   

The last being an involved flip costing 25k or so taking over a month.

Currently we pay based on gross net, debating if it should be based on something else.