You have certain options including requesting an earlier old ceremony dates. I would make an info pass appointment going in and speak to an information officer and he can explain to them the reasons why you would like an old ceremony earlier and I would bring the documentation regarding your mothers illness. If you can't still get next bedizen ceremony I would speak to an attorney to assist you in this matter
Mr. Asatrian's practice is dedicated to the area of immigration and nationality law. Please note the information provided herein does not constitute legal advice and should not be construed as such by anyone. It should not be relied upon as legal advice as more specific facts, research and analysis may be required to formulate a proper strategy and action in your matter. Please note this does not create an attorney-client relationship whatsoever. You should seek the assistance of an experienced immigration attorney to review your matter thoroughly and gather all of the necessary information and documentation to provide you with the best possible legal solution.
As my colleague suggested, you can schedule an infopass and explain your situation. If they are not willing to schedule you to take the oath asap, then travel with your green card (make sure you let them know you will be away). Good luck!
This answer is for informational purposes only and should not be construed as legal advice.
As my colleagues pointed out ... you can go to an InfoPass and ask.
Be sure to have a doctor's letter proving that your mom is super-sick.
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