be well in (with)

To have a friendly relationship with a powerful or important person and, usually, benefit from it in some way. Primarily heard in UK, Australia. Now that I'm well in with the CEO, I'm sure I can get you a job at our company. The superintendent is a powerful woman in the school district, so I hope you're well in with her. A: "You're not well in with Mrs. Melvin these days?" B: "No, not since my dog destroyed her garden."

be ˌwell ˈin (with somebody)

(informal) be good friends with somebody, especially somebody important: She seems to be well in with all the right people.