I've done a Google search but have not found any agents who are familiar with investors.

For example I have a 3/2 SFR that has an unfinished basement, if I spent 15k to finish it and added a bedroom and a full bath to bring in another $250 a month in rent.

Lastly, by a lot of work, I mean it needs completely rewired with lots of outlets added to come up to code.

If you have a lot of bad debt the last thing you should be doing is adding more debt

The is the exact question my millionaire sister who works at google, told my wife when she asked how do you become rich. 

1) SFR on Edith Blvd in Northeast Valley (according to google maps). 

Although its not adding to my income, my personal housing expenses are less allowing me to save more for future opportunities, and as others have mentioned, as a newbie I cut my teeth on all the nuisances of rental property investing. 

There are several previous threads that might be helpful:http://www.biggerpockets.com/forums/70/topics/4251...Type the following in a Google search: site:http://www.biggerpockets.com/forums/70 jv

To check if there is demand for storage units in your area there are companies who will do a marketing study for you (costs a few grand) or you could run some ads and see if people call.

A quick google will get you what qualifies you as an RE professional.