@oristarA,
Farmerman owns Bullshit Geological Surveys, LLC. He is the Principle, the bull goose loony, the Number One Dude. Setanta is his business manager, who is authorized to sign off on certain documents on behalf of Farmerman, such as contracts for bullshit geological testing supplies. So, when Setanta signs such a contract, he signs
Setanta, PP, which means he is the agent of Farmerman (the Principle) who is authorized to sign for him.