Our lease was from June 2006 to May 2007, then on a month-to-month basis. We got a letter from our property manager that says we have been living here non-stop since June 2006. I submitted a copy of the top page of our lease (with the dates and the amounts, plus what is included) and the letter from the property manager with my I-130 to prove the marriage. I haven't heard anything, so I take it is ok by USCIS.
My wife photocopied the entire lease to submit for the I-130. We only included the page with our information and everyone signatures. The other pages were regarding county and state regulations regarding living in a rental community. I didn't think it proved anything nor do they care about rental regulations so I didn't send that part. Was that acceptable?