60 day notice to occupy during Moratorium

[Laura Keels]

So my tenant's lease ends 8/31 and moratorium ends 8/1 at 11:59 pm but if extended I am screwed unless I can give him 60 day notice to occupy or sell. I contacted lawyer who says he can write letter for $250 ad $70 to deliver but I am wondering if I should just write one myself. The problem is he returned my letter unopened. Rent is due tomorrow but he has a job but thinking he will try to not pay using COVID as excuse. Can he stay beyond his lease date? Moratorium may be extended as it was in Oregon. I live in Washington.