(I say single, because -- to be blunt -- sometimes female loved ones aren't always psyched to live with four strangers for obvious reasons.)You could also buy a duplex or a home with a basement unit and short-term rent (or Airbnb) that space, which can bring in good cash flow and give you some privacy that taking on roommates can't always do. 

Maybe, he is a male prostitute and my Las Vegas homes had a few female strippers, but at least they converted their dollar bills to cashier checks and paid on-time every month.

In this case since it is an adult female, doing a closet check should also be an indication. 

If all goes according to plan, the Asian flatscreen component manufacturer, FoxConn, will begin construction of a new facility here that will ultimately employ 13,000 people.

About a year ago there was a murder of a lone female convenience store clerk.

In order for them to have gotten a student visa, they would have had to have a sponsor - i.e. the parents guaranteeing their expenses.They're choosing California, which is an expensive state, so I would think the parents would have some money.There's a risk to their visa, if they were caught in some kind of felony, so I think the likelyhood of them destroying your property is smaller than with an American, in my opinion.I also believe that Asian countries see honor and shame as much more important than the way American see it today.

And are you renting to females or males or co-ed?

I'm 23 year old female, I attended University of VermontBurlington, VT and graduated last year.

I'd find a way to target female tenants, myself, if there's a way to do that without violating any laws,  and avoid those college boys. 

I am young, I am female, I'm not an idiot.