A suit for Stern to sue or for Larry to sue? I'm assuming this was considered frivolous and the court has order that Larry be reimbursed for lawyer bills and for travel expenses as such.
The basis for a suit for Larry to sue.
For Larry to sue Stern, given that the court ruled Stern's suit was frivilous, yet Larry had to suffer the troubles it caused him. So he could use that finding to sue Stern privately, if he chose to.
oops...frivilous = frivolous