🔰Keep in with someone
If you keep in with sb, you stay friendly with them, often in order to gain some advantage for yourself because they have power or influence.
I had to keep in with the people who mattered.
🔹 To have sb or sth remain in a particular place with sb or sth else.
In this usage, a noun or pronoun is used between "keep" and "in."
Amelia is petrified of dogs, so you need to keep Rover in with you until she leaves.