A large trailer parked outside of the Taxi and Limousine Commission office in Queens beckons drivers inside. 

"It was a big, huge change for a lot of people since Uber came to the market," said Amro Saber, who leases cars to aspiring Uber and Lyft drivers. "It's pushed the market, opened a lot of opportunity for a lot of people."

Business has been good for Saber. But last month, things looked like they might be about to change. 

"We start to double the amount of vehicles we purchase. We doubled it up to 400," he said. "We didn't know where the market is going to go, how limitations will be done, if the law is going to pass by or not."

His company is quickly buying for-hire vehicle licenses. 

It's all because the City Council is poised to vote on a proposal that would cap the number of those licenses for a year. It's supposed to give the city time to study the impact of companies like Uber and Lyft on congestion. 

It's pushed by the yellow cab industry, seen clearly outside Saber's window on Monday. They are cheering on that proposal. 

"There is absolutely no reason beyond corporate greed for why there would be no cap on the number of vehicles," said Bhairavi Desai of the New York Taxi Workers Alliance.

They see it as the only way to help yellow cab drivers, who have been overwhelmed by debt since Uber and Lyft took off. Some cab drivers even took their own lives, which was showcased in a new ad by the taxi drivers' union on Monday. 

"Kenny was forced to work 12 hours a day, but was driven deep into debt," the ad says.

The head of the same union called Saber's business predatory. 

Not surprisingly, Saber does not support the Council proposal. 

"I believe, like many people in the industry, it will hurt the majority of the drivers," he said.