Taxi drivers upset over what they see as regulatory concessions by the Broward County Commission to ridesharing companies Uber and Lyft are taking their concerns to court and seeking $150 million in damages.

Fort Lauderdale law firm Kelley/Uustal filed suit Monday against the county on behalf of 1,400 holders of certificates required to drive a taxi or other for-hire vehicles. The plaintiffs claim a certificate was worth $150,000 or more until county commissioners voted to change for-hire vehicle regulations to make it easier for Uber and Lyft to operate legally.