It seems as if MFN kicks people when they don't log in for 3 weeks, so woke up today to find a team without an owner.
https://usflwfl.myfootballnow.com/team/23 Georgia is open now, and I expect Portland to open up tomorrow for not logging in.
Additionally, the Denver franchise is available now (currently owned but he's not renewing subscription) if anyone wants it and Southern California should be open at season's end as well.
There are no custom rules in USFL.