yesThanks @newacct and so to rephrase, I don't accrue unlawful presence from past date when & if 539 is denied. Instead, only my B1 visa will be voided since I overstayed.
I am not familiar with the rules for reopening and whether it can be done in this caseYou also suggested/wondered if 485 can be reopened. How? I consulted with a lawyer who said file 485 again with a request to "use discretion as leaving Part 2 Item 10 blank meant No by default and hence consider receipt date of my prior submission" - there is some legal case going apparently about blank fields/spaces. Your view?
Yes, because you would have been out of status for more than 180 days (pending I-539 is not status), so 245(k) would not help.Also, you replied - " I-485 you file now would be valid if the I-539 is approved to Dec 2020" - does it mean if 539 is denied (in 2-4 weeks), then 485 will surely be rejected/denied later?