No.
The following Presidents were bachelors (unmarried, single) during all or part of their terms in office:
Single during their entire Presidential term:
Thomas Jefferson, Andrew Jackson, Martin Van Buren, James Buchanan, Chester A. Arthur. (All but Buchanan were widowers. )
Single during part of their terms:
John Tyler, Grover Cleveland, Benjamin Harrison, Woodrow Wilson. Tyler and Wilson lost their wives and remarried while in office. Harrison lost his wife but did not remarry while in office. Cleveland married for the first time in office.
John F. Kennedy and James A. Garfield were under 50 when they were assassinated.
"My husband is an immagrant and i am a us citizen and we have been married for 2 years and have been toghether for three years how can i help him with his legal status in the US?"
It was not and never has been a requirement in the US.
If you have established residency
ONLY if you have your papers and proof that you are married with a citizen or resident, if not, you are considered an illegal in the U.S.
Linda Wolfe has been married 23 times as of 2009. At present, I believe she has that record in the US.
no, this can't be legal at all. Careful.
im pretty sure no
It is difficult to answer this question, since you do not tell us which president you are asking about. Most of the presidents of the United States were married (or had been married but were widowers). Only one never married-- James Buchanan.
Yes. Jim Lovell married Marilyn Gerlach in 1952 shortly after graduating from the US Naval Academy. They have been married ever since.
In any U.S. state. All fifty.
That all depends on what country your in.not in the US.