For example, ok to have family living with you for free or helping out with mortgage payments, but not ok to charge rent to roommates. 

This is what you can do if late fee is not allowed:Say if you charge rent $1300/mo then write up your lease for $1450 and give 150/ discount if they pay by the 4th.

The second home route allows tax benefits for interest deductions without treating the property as an investment.You can charge rents, doing so may cause different tax treatments depending on charging market rates or nominal rents, but not the mortgage.

So if you get a house under contract for 70,000 and you want to charger a 10,000 assignment fee, you find a buyer who will buy it for 80,000 and you'll get your 10,000 assignment fee.

B) Draw up a contract giving her 2 months maximum to find a new place to live, do not charge rent for that time, with cash-for-keys?

@James Z.Roofers Usually charger per the Square .

I know it's common in Australia to charge rent every week, increasing the amount of income to the Landlord and making it easier to evict when a Tenant is late.However, there are two problems.

But warehouses charge rent, which is a little out of my budget.

Seems to me this should be standard maintenance for the landlord and charge rent accordingly. 

I wonder what large complexes are going to look like in the next decade or if there will just be more super chargers and people just need to dedicate more time to fuel up.