Hiring a construction manager vs. GC
For our next kitchen remodel, we are thinking of hiring a project/construction manager instead of a general contractor. Since this is our fourth kitchen remodel (two DIY, one large one where we had a GC) and the remodel involves no moving of walls or addition of space, just changing out appliances, cabinets, counters and fixtures, we don't feel like a GC is necessary to run this project and are exploring the idea of a project manager (a licensed general contractor who has a lesser role in the project).
The idea would be for the project manager to help us obtain permits, assist with managing the schedule and provide guidance and consultation along the way. We would pay the subs directly and there would be little to no markup on the cost (we have already located our cabinet maker and have a crew lined up to do the demo and have a list of plumbers and electricians).
Has anyone used a project manager? If so, what are the advantages/disadvantages? What sort of questions should I be asking the project manager as we begin the interview process?
Also, my impression is that their fee is a flat fee and typically based on a percentage of the total cost of the remodel. Is that assumption correct?