Can my landlord who is renting a room to me in her house in one state use another state’s rental agreement?

Here’s the deal, my boyfriend and I found a room for rent in a house on Craigslist. We have lived here almost four months now and suddenly all the sudden the landlady wants to give everyone rental agreements which is fine, but I don't agree with some of the terms. Like for instance the first week I lived here I would leave the house and leave my door unlocked until one time I forgot something and turned around and went right back home only to find my landlady standing in my room not 10 minutes after I had left the first time. So I got a lock and put it only my door. The rental agreement has specific terms requiring me to give her a key to my room. She say for emergencies, but there was no emergency the day she was snooping through my stuff. I am pissed. She says if I don't sign it I don't live here. What should I do? Also it states that any property left behind will be considered abandoned, and also it is a Massachusetts agreement printed off the internet. Does that even hold up here in Oregon?