I am a Canadian/Mexican citizen with a rental property in Portland, Oregon.

But lets just say that, I have allowed my friends to stay in my basement while i stay on the ground floor, because he is in transition period and i trust him to do no harm to me or my house, I dont get any rental income what so ever, and i dont get into troubles for letting my dear friends use my basement. my example is not good for legalities if one of us get into a a fight or have concerns or if neighbors have concerns related to loud music or suspicious activity in the night. 

Seeing it like crazy in the Central Valley of California with our Mexican population right now. 

I pity the near neighbors having to put up with ear splitting “music”, all kinds of guys in and out, probably a couple pit bulls running loose, etc.

Also, you can end up with "musical tenants" who come and go in such numbers that it's unclear who is actually living in the property.

Definitely feels like the music is slowing but hard to say with confidence. 

I'm close enough to Little Creek to hear the base morning and evening music every day and the gunshots (sound of freedom) when our troop are practicing. 

He has gotten worse over the past few days and other roommates are complaining about his loud music.

After about 5 or 6 sentences in, I waited for the Oscar's "hurry up and get off the stage music" to start playing lol

Don't allow them to use your construction site as their party place.If you have other units with residents in them, prohibit them from playing loud music (even though I like Mariachi music myself, blasting boom boxes at 7 am, your other renters, such as Mr. or Ms. sleep in late won't like it).