Collocations for paperwork - noun

proper
necessary
legal

deal with, do, get through, go through, handle, prepare, process
I need to get this paperwork done by tonight.
I have a lot of paperwork to get through.

complete, finish
sign
involve
The project involved an enormous amount of paperwork.

fill in (BrE), fill out (esp. AmE)
file, submit
He filed the necessary paperwork to establish the club's business name.

reduce

paperwork for
Have you done all the necessary paperwork for the sale?

a backlog, mountain, pile, etc. of paperwork