Lady Sennifer was the female owner of the drinking and gambling establishment known as Sennifer's Beam and Balance on Boxer Point Station. In 21 ABY, she served four Red Dwarfs to the gambler Lando Calrissian, advising him to drink them slowly. She later had to instruct her Lasat security to break up a bar fight started by the bounty hunter Ochi of Bestoon and the mercenaries Bosvarga and Cerensco.
Lady Sennifer was the legendary owner of Sennifer's Beam and Balance, a drinking and gambling establishment on Boxer Point Station, a space station that orbited the gas giant Janx II near the Inner Rim. In 21 ABY, she served the gambler Lando Calrissian a round of four Red Dwarfs at the bar, warning him to sip them slowly and charging him four hundred credits, describing the cost as "danger money" when Calrissian was surprised by it. After he paid she left to serve another gaggle of customers without saying anything further.
Calrissian then eavesdropped on a conversation further down the bar between the bounty hunter Ochi of Bestoon and the mercenaries Bosvarga and Cerensco. When one of Calrissian's companions, a Muqularan, then approached him to ask why he was taking so long with the drinks, Calrissian lied and claimed he was waiting for Sennifer to bring him that she was fetching from the . A fight then broke out between Ochi and his two companions, escalating to involve at least a dozen patrons. At the bar, Sennifer instructed two of her Lasat security staff to break up the fight, but when the pair leapt over the bar and tried to find the trio who had started the brawl, the Lasats found Ochi, Bosvarga, and Cerensco had vanished.
When serving Lando Calrissian, Sennifer wore a heavy-duty respirator with protective eyepieces, although she removed it and left it hanging round her neck while talking to her security. The mask covered her entire face, and her voice sounded tinny while she spoke through the cans of her respirator.
Sennifer appeared in the 2022 novel Shadow of the Sith, which was written by Adam Christopher.