I run the land brokerage arm at Newmark in Houston and sell development sites primarily.

I have won on all of those sites for clients, but your time will be better spent somewhere else.

Also these deals are not one out of 100 they are the last 3 i have closed on to keep, you can verify on the county site.

Zillow is the biggest real estate website but it helps listing on other sites. 

Also make sure he/she is a native Spanish speaker or at least very fluent since the agreements and legal documents are always in Spanish, some are translated as a courtesy but the Spanish versión always prevails.

We used ALE relocation services and they were great, you can register on their site when you have a vacancy and they will let you know if they need you but it is somewhat based on luck if they need you.  

Who is responsible for cleaning the construction site and keeping public walk ways free and clear of construction debris since you are in CA without the ability to monitor the site?

I have a discount on my site if you are interested.

Site Civil and land use planning....I've been in the conversations for major clients that have both pursued an eminent domain against adjacent owners and have had takings due to eminent domain.

The only thing that no one else has mentioned is that required by law on site agent?