How much do I pay for this?

[Stephen N.]

My dad is a contractor and he has been instrumental in helping me buy my first reo property. He has inspected the house and determined what work needs to be done on it. He will also have one of his guys serve as the project coordinator for the job.

My question is how should I compensate him for his help? I guess he's functioning more as a consultant than anything else. He already said he doesn't want a penny from me, but I don't feel right about that. Should i give him percentage of the profit when the house sales? or a flat fee?

I want to do what is fair and reasonable.