3 songs need cleaning up

I’ve produced an LP and the production etc. However the promotional company I’m working with has requested some changes to be made and to consult with another producer to make the tracks less repetitive and more polished.

Additional info:
The song has less than 10 tracks recorded that need mixing. I'm interested in working with a very experienced mixer. I don't need the song mastered. I need the mixer to do some editing, time aligning and vocal tuning before mixing. I need it by 6 September, 2021.