Wash Sale rules, RSUs

I sold some RSUs at company 'A' that vested years ago at a loss, and then learned that RSU vesting counts as a purchase for wash sales. Since I vest every month, that loss can't easily be used to counter other stocks I sale at a gain. 
I understand that the loss is carried to the newly vested RSUs as an adjusted/higher cost base. 
My question is can I now sell the newly vested stock and sell another stock that gained, and that way benefit from the tax harvesting this year?

For example,
(1) I sell stock A for a $100 loss. (I held A for years)
(2) A week after, I vest more RSUs of A and (3) immediately sell at the same price I bought it. Because of the adjusted cost base, the second sale has an adjusted loss of $100.
(4) Then I sell an unrelated stock 'B' at a gain of $100.
Overall the net gain/loss is $0.

Can all this happen in the same year?