Foreign Spouses of USC who overstayed their visa do not "get a Waiver"
However, If they have not worked or entered the USA w/ out inspection and if all that was done was overstay, then once they are married to a USC
The overstay is usually forgiven and rarely adressed, That is not to say she is granted 100% gaurantee of immunity.
The USC should file an I-130 concurrently with the foreeign spouses'
AOS I-485. As soon as possible!
The spouse who overstayed VISA should NOT:
Leave the country or Apply for any GOvt. benenfits until authorized by USCIS ( except Emergency medical) Should not work or travel until GC is received.
Now USC and beneficiatry Spouse should establish evidence of legit marriage ( joint accounts, leases, ect.. ) and once every thing is in order file I-485/ I-130/ I-864 Concurrently)
My spouse Overstayed her Visa We waited for over 1.5 Years before we even filed AOS,
I dont reccomend you do as we did, I mention it only to establish that an overstay visa can be forgiven and AOS can be granted under most circumstances, so long as the intending Immigrant has not violated any other laws or USCIS immigration laws.
We stayed under the radar and she did not work or travel for the past 2 years. 196 days after we filed AOS package ,She now is a Legal permanant Resident and has a 10 Year GC.