It must be hand delivered or there needs to be several attempts to serve them.  

In my instance they grossly over promised and when they knew they weren't going to be able to deliver, they began dragging out the process of providing final terms to the point where the window to switch to alternative financing becomes too narrow and you're basically indebted to them.

My concern would be the diversity of it's economy and industry and what the economic drivers are.

Just bought my first home in November 2018,I'm starting late in life I'm 67 years old,and a truck driver,am ready to learn how to invest,very little in savings,I guess what I'm getting at is what is my next move?

Everyone thinks their house is worth more than it is, and a good listing agent needs to know how to under-promise and over-deliver.

Rates,will adjust up, market conditions might not drive rent up...

Send a letter tomorrow via certified and regular mail to all parties including the Broker demanding a FULL release be delivered to the Title company within 7 days or you will pursue legal action and file a complaint with TREC. 

These are huge lists I'm talking about here so takes too much time to find one by one and with a click of a button with all the emails you can deliver 100,000 emails. 

The largest driver of tenants is area.

If I can’t deliver anything appealing enough he is obviously going to play it safe with his broker in SF and just do a similar project to the previous two.