The vacancy rate in San Diego is somewhere around 3%, the city is growing like crazy, there are already massive developments planned on the east end of east village which will just continue to expand east.

Apparently, there is a market for hip "retro" features among people without taste. ;-)

They are free for demo and have a monthly cost if you continue with them after 5 days.2. 

I'm struggling to find any information on that component, but I will continue searching.  

I am definitely going to continue to to branch my knowledge on investing in real estate, but should i be a little more patient before i start investing?

I would like to try and buy a multi-family and I guess I will just continue to monitor throughout the winter to see if a deal REALLY jumps out at me.

Here is a start:  https://www.biggerpockets.com/rei/glossary/The search feature here on BP is very useful, that's how I found this link. 

Nevertheless, I can pick up the phone and get quotes from a half dozen people because I bring them business continuously.

If your realtor chooses not to continue with you afterwards, they probably weren't the realtor for you.

NYU offers them, some online, through their continuing education and professional studies department.If you still need help, hire a real estate counselor, with the CRE designations.