Before your fiancé gets on that plane, there is one rule that shapes everything about this route, and it is the rule most families are never told.
We would rather you hear it from us now than learn it later.
The Rule
If your fiancé is admitted on a fiancé visa, they can get a green card only by marrying you, the specific citizen who filed the petition.
Not a different citizen. Not through an employer. Not through a parent, a sibling, or an adult child. Not the visa lottery.
The law is INA § 245(d), 8 U.S.C. § 1255(d), and USCIS states it directly in its own guidance: your fiancé cannot adjust status except on the basis of the marriage to the citizen who filed the petition.
And there is a second half that closes the room.
Your fiancé also cannot change to any other nonimmigrant status. Not a student visa, not a work visa, not a visitor status. The regulation, 8 C.F.R. § 248.1(a), excludes this category from change of status entirely. It is categorical, not discretionary.
Why This Matters More Than Any Other Fact
Most immigration routes have alternatives. If one path closes, something else is usually available to examine.
This one does not work that way. Read the two rules together and the shape is clear: one door in, one door out, and the door out is the marriage.
If your marriage does not happen, your fiancé has no second option to fall back on.
What Actually Happens If the Marriage Does Not Occur
We are going to state this plainly, because softening it is how families get hurt.
Your fiancé gets 90 days from the day they are admitted. If your marriage does not happen in that window:
- Their unlawful presence begins accruing from day 91.
- You cannot get an extension. The 90 days is a condition of admission, not a nonimmigrant stay that can be extended. No mechanism exists to ask for more time.
- There is no change to another status. Categorically excluded.
- There is no adjustment on any other basis. The statute forecloses it.
- The law says your fiancé shall be required to depart, and failing to do so exposes them to removal proceedings.
And because their unlawful presence accrues, leaving later can create its own separate problem on top of this one. That is a bar question with its own rules, and it is not something to work out from a web page.
Content that describes this as “you go back to your normal options” is false, and a family who believed it has already lost something.
Who Should Read This Twice
Anyone choosing between the fiancé route and marrying abroad. This rule is the strongest argument for thinking hard about that choice, and it belongs in the decision rather than in the paperwork: fiancé visa or marriage green card.
If either of you has doubts. Not because doubts mean your relationship will fail. Because this route removes your ability to pause and reconsider once your fiancé has arrived.
And if your timeline is tight. Ninety days is not long, and your clock starts the day your fiancé is admitted rather than the day you are both ready.
Why We Publish the Hardest Fact About Our Own Service
Because the alternative is you spending the money, making the move, and finding out afterward.
This is a real route and a good one for many couples. The rule above does not make it a bad choice. It makes it a choice that should be made with the whole picture.
If your case is weak, you hear it from us first. If there is risk, you know before anything is filed. If there is a path, you get a plan built around it.
Talk It Through Before Anyone Books a Flight
The right time to understand this rule is before the petition, not after the arrival.
Talk it through with a bilingual team member. Bring both of your histories and your real timeline.
Law Office of Gilda McDowell. Serving families across West Texas and eastern New Mexico.
This page explains how the law works. It is not legal advice about your situation, and reading it does not create an attorney-client relationship. If a fiancé is already in the United States and the 90 days is approaching, speak with an attorney promptly. Everything here was verified against the primary sources on August 28, 2026.