My wife came here on a K-1 Visa we got married 20FEB12 her visa would expire 30apr will she be deported if we dont file for change of perm. res status

Hello Anonymous, It is good practice for a  person who enters on a K-1 fiance visa to marry and file for their legal permanent residency status within 90 days of entry into the U.S. on the K-1 visa. This avoids problems with the U.S. Citizenship and Immigration Service (USCIS). It is important to marry within the 90 day window in keeping with the K-1 visa requirements. If a person marries during the 90 day period but is unable to file for adjustment within this period, their spouse should still be able obtain their legal permanent residency status, depending on the circumstances of the particular case. However, if a person does not adjust their status to a legal permanent resident and later divorces the U.S. spouse that filed the K-1 visa, there is a strong risk of deportation if the CIS becomes aware of their undocumented status. If there are practical reasons why you are unable to file for your spouse's legal permanent residence in a timely manner, you should consult with an immigration lawyer and discuss your case specifics to find out the pros and cons of a delay in your particular situation.   Notes: This information is of a general nature and is not, nor is it intended to be, legal advice. You should consult an attorney for advice regarding your individual situation.