Video Editing

I have a bunch of video tutorials that are simply Screen-Sharing + Audio. The person making the tutorial fumbles in places and re-reads sections. So the videos need to be edited for cohesive audio and to cut out the duplicates / fumbles and ---------- addition to this, I will provide Intro and Bumper slides to be added. I need the videos sent back to me via Google Drive folder with links. MP4, Aspect 16:9. YouTube Quality. About 45 - 55 videos from 2 min to 15 min.