Blank Rome has sued Andrus Wagstaff for unpaid legal fees associated with getting the firm $13 million in common benefit compensation in the transvaginal mesh litigation.

The lawsuit, filed Monday, alleges that Andrus Wagstaff owes Blank Rome $489,500 after retaining the Philadelphia firm to help boost its common benefit fees in the transvaginal mesh litigation from the $8.7 million amount that a fee and cost committee originally allocated. Blank Rome, the lawsuit alleges, was able to get another $4.9 million, which, under the terms of the retention agreement, entitles it to 10% of the amount of the increase.