Maryland  |  Immigration Law

Yes, he can be removed (deported) if he is in USA illegally (it's not clear from your question: what is his status in USA).

Is his wife a USA citizen or a foreign citizen?

What criminal record he has?

No, he can't become a USA citizen. A first step for a foreign citizen would be to become a lawful permanent resident (if eligible to apply). Then, after a number of years, a person is usually eligible for citizenship.

Having a criminal record, he needs to consult an immigration attorney before applying for any immigration benefits.

If you’d like to schedule a telephone or email legal consultation, or need advice or help, please let me know, and I’d be glad to help you: Attorney [@] law-visa-usa.com

Note: The above response is provided for legal information purposes only and should not be considered as legal advice. This response doesn’t create an attorney-client relationship, which can only be established through payment of a fee. If you request a follow-up confidential advice on your specific situation and regarding U.S.A. immigration-related issues, we can offer a paid consultation by telephone or email to clients from all States and globally. Please visit our website http://www.law-visa-usa.com/contact_us.html for more details. Our contact email address is Attorney [@] law-visa-USA.com