Phurchuluh

I finaly found the document stating that over 2 years marriage gives you unconditional green card.

8CFR235.11(b)
(b) Correction of endorsement on immigrant visa. If the alien is
subject to the provisions of section 216 of the Act, but the
classification endorsed on the immigrant visa does not so indicate, the
endorsement shall be corrected and the alien shall be admitted as a
lawful permanent resident on a conditional basis, if otherwise
admissible. Conversely, if the alien is not subject to the provisions of
section 216 of the Act, but the visa classification endorsed on the
immigrant visa indicates that the alien is subject thereto (e.g., if the
second anniversary of the marriage upon which the immigrant visa is
based occurred after the issuance of the visa and prior to the alien's
application for admission) the endorsement on the visa shall be
corrected and the alien shall be admitted as a lawful permanent resident
without conditions, if otherwise admissible.

http://a257.g.akamaitech.net/7/257/2...8cfr235.11.pdf

Rete

Which is great, however, please note that some offices will only give conditional regardless of length of marriage if you entered under a K-1 visa.