Starting a rental business with no income

[Jeff Grove]

Hello 

My wife is a stay at home mom and She would like to start a rental business. 
We currently have 3 rentals and 1 is paid off. 
How does she start the business ?

1. Would we start an LLC in her name ?
2. would we transfer the home that’s paid off into the llc or business name or her name  ? 
3. would she pay herself out of the rental income so she shows an income ?

Lots of questions I know, but just looking for a place to start researching 

Thank you 

Jeff