Burcin & Chris

Hi everyone! I entered to U.S on March 2nd with K1 visa. My fiancé and I will get married soon but I have a question. I know we need to get married within 90 days of my arrival. But, do we need to apply for the green card within 90 days? There are so many documents for green card and I don’t know if we can apply till May 30.(it’s my 90th days of arrival). We need to gather so many documents till that time. We will do our best to apply before that day but what if we apply on 100 or 120th day of my arrival? Would i be out of status with my k1 visa? Is there any rules about applying for the green card within 90 days of arrival with k1 visa?