One hook I use to attract relocating clients is the offer of a free relocation package.
My website is also a very useful tool; it's very easily findable in the top of the search engines for people relocating to my area.
Area tours to familiarize newcomers.
School reports that compare our area schools, both public and private, to the schools they're moving from.
Rental assistance if needed until their house wherever sells.
Guidance to a good mortgage banker and closing services.
Recommendation of a top home inspector
Guidance to local utility companies to transfer utilities
Sometimes I help with spouse employment, recommending companies and utilizing some business contacts I have made over the years.
Generally just being available to provide whatever assistance a family would need moving to a strange area most of the family knows nothing about.