I have two-gate wide opening on the side of my house.
The concret post that is next to the house has pulled away from the house near the top so that the gates are harder to open.
What is the best way to "shift" the concrete post back towards the house so that the gates swing freely?
I would remove material from the side closest to the house, then use a jack to push the post back upright.
Once upright, you will need to fill in the subsequent gap on the gate side. Concrete would be good, and consider opening the hole to increase the support all around that gate post.