Yes, it's a demand letter, aka words written on toilet paper. On it's own it's legally meaningless.
Demand letters are relatively cheap instruments designed to intimidate and coerce the would-be defendant into doing what you, the would-be plaintiff, want them to do. It's a big long document made up of a mix of threats, legalese, and hot air.
As far as I know, any lawyer can draft one. The lawyer does not need to be admitted to the bar (or have pro hac vice) in the state that 
@Null allegedly resides in, nor does the lawyer need to be admitted to the bar (or have pro hac vice) in the state Alyssa resides in. None of that shit actually matters until it is time to file suit.