Knowing the client’s motivation is the key to everything else in the deal.

Are you looking for a value add deal where a substantial return could be made by re-positioning the property or do you want to purchase more of turn-key property with management in place?  

I have seen builders withhold keys from buyers until it records while a moving truck sits outside a house all weekend, and the buyers sleep in a hotel.  

I would echo the two posts above me in this point: the key right now is to not worry about the tenants, rents, calculators, etc. as all that will be less meaningful if you buy an unsound money pit. 

For example, you set up key word alerts. http://www.biggerpockets.com/alerts

What works for the individual is always key, however Ca. does have a boom/bust market, as you have experienced.  

For example, you set up key word alerts. http://www.biggerpockets.com/alerts

You've discovered what the seller WANTS, and that's the key.

I save 5% on all purchases and they will deliver to the site for $20.

For example, you set up key word alerts. http://www.biggerpockets.com/alerts