So if someone is getting less money for their rentals then the surrounding properties I would look at what you can add or change to enhance your rent on your properties.

I believe a your license will enhance your knowledge.

After using it many times in the last 24 hours it occurred to me that the following enhancement would be cool:  financing options for the rehab effort. 

From what I understand, he has been doing it for a very long time, i.e. managing properties and enhancing rental values through additions and other means to be able to raise rent for my mentor's properties.

Here's what it says in the 10-K:To enhance a positive image in the community and support one of the Bank's values, we participate in many local events, and our officers and directors serve on boards of local civic and charitable organizations.It's not that hard to figure out.

Because I own businesses in other fields its great to wall off the software by company from the employees view but from my vantage point it's one system that reaches people in all parts of the organization, allows us all to work together on projects and enhances inter office communications.

If you're set on long term single family investing in the Phoenix area, you might consider ways to enhance your cash flow, such as:Vacation rentalsStudent rentalsGroup homesOffering lease options / seller financing

I also think creating additional cashflow income to better enhance your own real estate income makes even more since. 

Alex, there are many reasons for getting you license, and I'd suggest you consider whether you're intending to use it to enhance your investing career, or if you would like to use it for the purposes of being a Realtor?

Finally, depending on your return strategy and risk spread, different markets is something you may want to consider, for example you may want to spread your eggs beyond your immediate territory to enhance your buyers market experience, I know I may open up a bag of worms with my next statement, but consider turnkey operators in different market to help enhance your buyers market experience.