Preferably, it would be greatly appreciated receiving authentic recommendations from satisfied @investor and @landlord rather than from Pro's.

Find a way to be a help to them and be authentic about it.

My Name is William Duncan "Billy" from Cypress, TX and although I do not have any authentic REI experience, I have rented out the first two primary residence homes that I purchased just as a logical thing to do at the time.

The previous town manager (held the post for 30 years, transitioned Eagle from a rural ranching area of less than 1,000 to a semi-resort area of 7,000, while maintaining an authentic community) was cutthroat on obtaining water rights from developments.  

The clerk of the county or municipal court in which such judgment is rendered shall transmit an authenticated copy of such dated judgment to the county recorder of the county in which the property is located.

Soon (hopefully), it will no longer require the applicants to go through the SmartMove authentication process, and will instead give the landlord instant access to the credit/criminal/eviction report directly within the Buildium platform. 

When I get the text I click the link in it and it gives me a popup box reading AUTHENTICATION REQUIRED (bold, not caps), with regular font "bgrpkts.me" underneath, with two fields for username and password below that.

An ISP would just drop a router in there and already have an authentication system built for your type of setup.

But we found a property managers online who are ready even to purchase a home for us.So my question is how to check if property management company is authentic?

Most of the online classes require frequent authentication to note that you are spending the required time on the material so audiobooks may not be an option.