However, San Diego is an extreme case.However rents increase fast in San Diego.  

Like any city, there is dilapidated housing stock in rough areas that can cost more to upgrade than they are worth. 

But, for instance, I sent them a notice of rent increase effective February 1 and needed them to confirm that they have accepted the new payment terms through our electronic payment system, and even after repeated notices, they are not responding.

Is not a licensed appraisal specialists and therefore is not permitted to provide an opinion of value . ( keep wholesaler from telling seller their 500k prop is only worth 300k).4. the disclosure goes on and on about how to terminate it who to file complaints with etc etc. complaints go to the DRE.

It's certainly worth a phone call.

You may get one more year from them with a $75 increase but that's about all.

The amount of equity I call pull is less than the cash I have but not significantly less.When doing this analysis it struck me that it may not be worth using a HELOC for the simple fact that the interest rate is ~9%* while the funds in my high yield account are only yielding ~5%*.

It's not cheap though, but if you have a lot of properties, it would be something worth looking into.

Sometimes it may just be that the seller thinks its worth more than it is and refuses to come down on the price.

Leverage is a big factor in real estate investing, as investors can control large assets with relatively small down payments, increasing their potential returns (and risks).6.