Treat it like a business from day one, if you were to open a restaurant would you be the cook, server, greeter, janitor? 

That's not what I am asking, the question is because I am not the owner of the house (yet) how am I able to legally server a notice to vacate to a tenant?  

Search Google for "process server Wheatland CA" and you'll find plenty of options.

They are servers in other city, but vll be moving here and searching jobs.3 of them dont have credit history.1 has 650 ish.but ready to pay 2 months security.how does gurantor work, we should have gurantor for each one? 

Have a process server deliver him notice.

After 1 year, the lease becomes month-to-month and either party can terminate the lease with at least 30 days written notice provided prior to the date they need to/are vacatingI just called a local process server to serve that notice and he told me we can't do anything until September 1st due to the governor's extension of the rent moratorium.What are you all doing in this situation?

Also, can I serve the tenant myself, or does it need to be "someone official" like a process server?

You can filter by the beds and baths and other aspects to make the results as close as possible to the one you're comparing.When I build my semi-automated hotsheet for investors, I take exports from the MLS from both the sales side and the rentals side, pull them into a SQL Server database, do some data cleaning to screen out as much of the garbage as possible, and run what I call my "magic query" that joins sale listing locations to rental listing locations by a conditional match on subdivision and beds/baths, or the average of the entire MLS if the subdivision is given as "METES & BOUNDS", with a flag in the output showing that those M 'n B rental numbers are MLS-wide averages for a given beds/baths and will need a more in-depth evaluation (like rentometer) if the estimated cash on cash return for a classic 20% down scenario, looks promising. 

Financially it's similar to how a firewall acts among servers.

The reason why is that the potential upside of income as the years go by will be about 20 to 30% more than the technician path, and the even bigger reason to do so is that project managers don't get texted awake at 2 a.m. to address a server alert.