Finished entering paper edits on Friday night. Finished chapter 20 on Saturday morning and worked on 21 in the afternoon, total word count approximately 1700. Spent Saturday evening making notes on what needed to happen in the last two chapters, and what I thought I needed to show, and what I could maybe skip, and the outcomes for the characters (I actually thought of something new and better for one of the minor characters). Sunday, I finished chapter 21, just over 1800 words; it was a little shorter than I wanted, but everything's been getting longer with edits, so it should be okay.
Am not sure if the final chapter will actually need to be two chapters or not. A lot will depend on how much time I have, and when my brain sputters and collapses.
Tentative personal title for chapter 21: "Nothing Says Love Like Doin' It Up Against a Wall."