The shop can be accessed after Entering Jarvia's Hideout is acquired. If the Warden enters before they deal with Jarvia, they will find Roggar as well as other Carta members, threatening the shopkeeper. It's up to the Warden to deal with them.
The Warden can intimidate Roggar (two points of Coercion are required), pay 10 to Roggar's extortion, or alternatively fight him. If he is fought and killed, Figor will be scared and run for fear of retaliation after a brief conversation with him. If the Warden paid or successfully intimidated Roggar, his shop will remain open.
If Figor's shop is not visited until after Jarvia is dealt with, Figor will normally be in his shop.
Notable items EditRemarkable Emerald
This dark green gem has murky depths, like an overgrown pond.
, source: Figor's store