You can submit your applications together, but USCIS will not always schedule the appointments on the same day.
(213) 394-4554 x0 Mr. Shusterman is a former INS Trial Attorney (1976-82) with over 35 years of immigration experience. His response to your question is general in nature, as not all the facts are known to him. You should retain an attorney experienced in immigration law to review all the facts in your case in order to receive advice specific to your case. Mr. Shusterman's statement above does not create an attorney/client relationship.
My colleagues are correct. Moreover, it is wise to have an attorney you trust go over the requirements with you and your husband before submitting the paperwork, just to make sure there is no risk in applying. Good luck.
Otis C. Landerholm, Esq.
Immigration, Bankruptcy & More
San Francisco, CA 94110