Buying a home does not occur in a vacuum, involving only you and the seller. There are all kinds of people and services involved behind the scenes to make it happen. Since some of these services affect both you and the seller, there will have to be be an agreement on which companies you will use for them.  When you make your offer, you should request your favorites for these services.  If you are unfamiliar with these service providers, you can get recommendations from your agent.