I started looking at the costs yesterday.
Base plot maintenance is 12k +, City tax is 3k+ in Tormouth. At Tier 3, each table costs at least 480 silver to refine and craft.
Base residency is 10, but can be increased by increments of 3 with furniture.
So maybe increase residency to 25 (5 pieces of furniture), some reserved furniture for residents 10 - 15, some reserved furniture for sponsor guilds 5 - 10, and 10 public access tables. With this setup, residency would need to be about 850 - 1000 silver a day ( rough estimate) to ensure a profit.
How are you gaining income from this? Ability to use tavern as a home?