call the facility and ask them

Oregon's law regarding where a parolee may reside upon their release states they, "Remain in the State of Oregon until written permission to leave is granted by the Department of Corrections or a county community corrections agency. Extradition is waived if the person under supervision absconds from supervision and leaves the state." The entire text may be found on their website page - https://www.oregon.gov/boppps/pages/supervision.aspx

He will be wearing clothes that fit him when he is released. 

If the inmate's posted release date is 9/15/24, it has likely already been considered including the good-time credit given at the time of incarceration by the FBOP (automatic 15%). An inmate can only lose part or all of that good time, not gain more ...unless they decide to cooperate and give someone up to get some time shaved.

Unless they have overcrowding, or there is some illness that makes him vulnerable to COVID, then they may release him. BUT, it is highly unlikely he will get any reduction but for the 15% good time allocated to all federal inmates

He could have been sentenced to life WITH parole... OR he had some incredible information that got him released. i'm guessing it was the first one

If it's a federal sentence, and the judge likes you, they sentence you to 12 months and a day making you eligible for 15% good time. If you are in a state or county, you might get a break for good behavior and be selected for early release but because of overcrowding and the short sentenced inmates are the first to go.

Someone somewhere has their understanding of the plea agreement mistaken. Normally the state website is accurate, although I've known them to make mistakes on time calculation 

LOL... 30 DAYS!?!?! shame on you for even asking  

Very unlikely unless the COVID thing heats up again. The Feds are not responsive to "compassionate release" requests, even for those with terminal illnesses. She will do 85% of her sentence if she has no incident reports.