It's hard to say how long it will take and they don't expect you to follow up within 6 months. I would wait a month or two and then check on status. If there is a denial you should definitely seek legal advice. An attorney could assist you with fling a Motion to Reopen or Reconsider. I hope it doesn't come to that of course!
This is not to be regarded as legal advice which can only be properly offered after a careful assessment of your case. Please consult with an experienced immigration attorney.
Unfortunately in San Diego once it comes to this, USCIS takes it's sweet time: 3 months ? 6 months? Time will only tell. You can do an INFOPASS inquiry within a month, repeat it again and again in the months that ensue, but nothing will come out of it: "the case is still under review" you'll be told, time and time again.. Until one day, the agents, after having quietly but meticulously questioned your neighbors, searched your credit and purchase histories, snooped around your Facebook accounts and other social media accounts, will suddenly knock at your door and.. Ask to see how you live..
Soon after you might get a Notice of Intent to Deny, giving you 30 days to respond. You'll respond. They'll deny you anyway, and refer the case to immigration court. But once there , you'll get a second chance to present the bona fides of your marriage to a (very) smart judge. I hope it won't have to come to that..
The solution? By law USCIS has 90 days after an interview to render a decision. If they fail to do so, and after multiple (incessant, I should add..) inquires from you (by that time by your lawyer), ten you have a right to file a "Mandamus" ("we order" - not you, don't worry, but a Federal judge) Action, after which USCIS, under pressure from the US attorney's office will want to settle with your attorney and finally grant your green card.. Only resort to a Mandamus action IF yours is a REAL marriage.. Otherwise even don't bother, for the truth always ends up coming out in San Diego.. (USCIS has a very good Investigations team here..)
I hope this helps.
Behar Intl. Counsel 619.234.5962 Kindly be advised that the answer above is only general in nature cannot be construed as legal advice, given that not enough facts are known. It is your responsibility to retain a lawyer to analyze the facts specific to your particular situation in order to give you specific advice. Specific answers will require cognizance of all pertinent facts about your case. Any answers offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship.
hire an immigration attorney to deal with it. You should done this to begin with.
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