Often you can super charge rent with say college rentals or what I do STR.

If so you can charge rent through that period of time from the date she gave you notice.

Charge Rent per room?

Don't bother with battery powered tools (except for drill/impact set) as in a few years time you won't be able to replace your now-outdated batteries and chargers, whereas quality chorded tools will work fine for decades without having to worry.

That means, you can charge rent to a tenant who breached their contract, until you get rent coming in from a new tenant.  

Im not familiar with Oregon law, so obviously follow your state law, but many places allow you to charge rent until a new tenant can be placed if they break a lease early. 

Our government already does tell us how much rent we can charge, rent control, 2017 we are allowed a 1.5% increase.

Again, the ones I was referred to seem to be for large complexes, or charge really high fees.

However you're often not required to also pay for other housing, you just can't charge rent while they can't live there.

yes I had power, a solar charger for a 12 volt car battery that I used to charge my phone and run 12 volt rv lights.