The Hartford had argued the settlement allows the plaintiffs to circumvent its workers' compensation subrogation lien.

Discovery requested included delving into attorneys' alleged use of lead generation and litigation funding companies.

Stacking insurance coverage and piercing the corporate veil are also on the agenda for the high court over two days of oral arguments in Philadelphia.

The Superior Court looked to the former client's deposition in the legal malpractice case and said he failed to provide enough evidence to make a fraudulent inducement case, since he appeared to remember very little about his communications with the Spear, Greenfield firm.