[LWJ]

I got really good at this managing rentals.

Buy a box of all purpose joint compound. Fill the holes with the SMALLEST fill possible. Fingertip wipe into hole is perfect. If larger, use a putty knife.

Wipe flat with a wet rag when dry.

Refill anything needing it

Sand any high spots flat

If you have wall texture do this:

Get a can of texture (solvent! Not water based). Heat can in warm-hot water. Not on the stove!!!
Do a test shoot on a piece of cardboard or similar scrap. Look like your wall? Sparingly shoot over the sanded spots. Less can be more. Let it dry. Inspect for places to add more texture. Add if needed.

Prime wall.

Paint wall

It will be perfect to anyone who doesn’t know.