Why do Elvis and Anna Sherman meet privately after talking in the restaurant?

After meeting Cole and Rossi in the restaurant and dashing their hopes of nailing Green on the evidence they have, Sherman meets privately with Elvis and suggests that he see a man named Lucas Worely. Worely is a former lawyer from Green's office. He was recently busted in a drug sting. Worely used to work in Green's contract's department and he would have had access to contracts between lawyers and their clients. Sherman is hoping that Worely can lead Cole to better evidence of wrongdoing on Jonathan Green's part.