Taking a Contractor to a potential property?

[Bess Carter]

As a new investor looking for my first fix & flip, I don't have a great idea of what it would cost for different types of rehab. Would you all recommend taking a General Contractor to a potential property and paying him for his time in exchange for him giving a good estimate of the scope of work?  If so, does anyone in the Charlotte, NC area know a GC that would be good for this type of thing? Thanks so much!