Flipping a House: Does Buyer or Seller determine Title Co?

[Curtis C.]

When you flip a house as an investor, put it on the market and find a buyer. Who determines the Title company that will be utilized, is it typically the buyer or the seller?

Can the buyer set a preference for the title company they would like to work with?

I ask because I have a good friend who is an escrow officer, and whenever I flip my first home I would love to use her services.