Hi, totallytheresa -- and welcome! The guy's name is Farrah Gray. He apparently wrote a book called Reallionaire. I Googled him and he does things like motivational speaking, too. From the articles I saw, he was born and brought up in the projects and has defied a lot of bad odds in order to become a success.
He was helping Lisa 1 (there's another Lisa later on in this season's episodes, so you might see them referred to as Lisa 1 and Lisa 2), who has a problem with maturity / responsibility / etc.