American Citizenship you can ask for 3 months before you turn 5 years residency or 3 years after becoming a resident if it complies with the requirement of the 3, 3, 3:
1) Being married to a us citizen for 3 years
2) The american citizen has been a citizen for 3 years
3) Bring up to 3 years with the residence. Certain people must not apply for citizenship because they may lose the house if they have a history of immigration serious for example.
Derivative citizenship can be obtained under certain circumstances, if one's parents are citizens. But not in all cases. It is easy when it is a case of a young person under the age of 18 and at least one of the parents is a u.s. citizen. But when the young person is over 18 is more complicated. These cases are possible, but you need to consult with your attorney.
Have questions? Acquires a query
English 
Spanish