and it puts wholesalers in the used car salesmen category not a professional or providing a service the only service they provide is to make money for themselves.. which you can do being an agent.. or better yet be a true investor just buy the house do something to it and resell it.. 

I am looking to network with developers, contractors with commercial experience, and experienced land acquisition professionals in the Los Angeles, San Bernardino and Riverside County areas.

This would be a good time to talk with a qualified tax professional, well versed in working with landlords and rental properties.

Friendly on the phone?

We haven't done much direct mailing recently in San Antonio but in the past we did and one thing the I always remember from the phone calls that is totally different from the Houston market is that in SA a lot of people told us either: "I would sell my house if I had somewhere to go" and we also got a lot of "I'm going to die here in my house and none of my neighbors will sell 'cause they feel the same way.

So for example you would buy your own domain name : info @ OliviaKoller.com and attract better quality hits than using just a gmail name.Another tip is to watch and start to pay attention what other professionals are using.

Welcome to the Bigger Pockets site all new investors and seasoned professionals.  

As real estate investing is not my professional focus nor do I have background/experience around it, I've been thankful for finding sites like this!

Generally that works but it may be owned by an entity without a phone number.

For one offs, you can contact @Joseph ODonovan & see if he can find a few phone #s.