got a contractor

[Shequann Burrwell]

I got a contractor that will do free estimates on the properties that I find. now I been reading on here and it seems that buyers don't take that into account when buying a wholesale property. I wanted to make all my deals as solid as possible. should I scratch this idea and estimate each cost my self? also I don't want the contractors that i get to do these estimates to feel like im useing them will they be picked to do the work once the deal closes?