How to identify potential rental properties

[Dany Jarjoura]

Hi all, 

I'm just starting out in learning the basics of rental properties. I'm based in the North Bay Area California. 

While I am not quite ready to purchase a property yet, I wanted to ask how more expierenced landlords analyze properties when looking on zillow. What numbers do you run when determining if a propety is worth taking a closer look at? I know that there are great oppurtunities in the area, but they won't be easy to find around here. Any advice is appreciated!