A work permit takes up to 90 days from the date of filing. Estimated processing times for Adjustment of Status are as posted on the USCIS website.
J Charles Ferrari Eng & Nishimura 213.622.2255 The statement above is general in nature and does not constitute legal advice, as not all the facts are known. You should retain an attorney to review all the facts specific to your case in order to receive advise specific to your case. The statement above does not create an attorney/client relationship. Answers on Avvo can only be general ones, as specific answers would require knowledge of all the facts. As such, they may or may not apply to the question.
Generally, issuance of the EAD after filing an I-130/I-485 takes about 3-4 months now, but the total time it will take to process your case as a whole depends in part on processing times at the local USCIS district office that will have jurisdiction over your case from the time of interview through adjudication. That, in turn, depends on where the two of you will live together once you get married, Rhode Island or New York, and if the latter, where in New York state you plan to live.
This is general information only. It is not intended as a substitute for legal advice, and does not create an attorney-client relationship.
I agree with my colleagues. Work permit normally takes 90 days and the adjustment interview will ultimately depend on the local CIS office with jurisdiciton over your case.