New York officials launched legal recreational marijuana sales by promising many of the first retail licenses to people with past drug convictions, hoping to give people harmed by the war on drugs a chance to succeed before competitors crowded in.

But more than nine months after sales started, only about two dozen state-sanctioned dispensaries have opened their doors. Legal challenges over the state’s permitting process have left more than 400 provisional licensees in limbo. Marijuana farmers are reeling because there are too few stores to sell their harvest.

State regulators are now expanding the market amid those troubles. They recently opened up a 60-day general application window to grow, process, distribute or sell marijuana, expecting to issue more than 1,000 new licenses. New rules also will allow companies licensed to grow and sell medical marijuana in New York to get into the recreational market.

The moves are expected to boost the number of legal dispensaries in a market now dominated by black-market sellers who simply opened retail stores without a license. But the prospect of competing with the medical providers worries some farmers and retailers who fear being squeezed by deeper-pocketed companies before they had a chance to establish themselves.