Do you tell your contractor you are a flipper?

[Tristan Cortez]

I am about to flip our first house and am going to get bids from contractors for the renovation. So my question is, do I tell the contractor that my intention is to flip the house or should I not give any reason at all? I'm concerned that the contractors might think I have extra to spend. Does being a flipper make contractors over bid and try to charge me more than a regular renovation?