Things/process vary by state. You would probably want you and the outgoing owner to overlap some time there, so they can train you up on the day-to-day, processing invoices, learning about your state’ ABC (alcohol beverage commission/liquor control board) rules, regulations, licensce transfer and renewals… and how to send in your invoice checks on time to your distributors.
You might have to deal with local and state tax reporting in addition to other obligations. You may want to hire someone for those matter.
CityHive seems like a solid company you could tap to help build your online store. You would upload your inventory files from your dashboard/point of sale.
Get acquainted with the sales reps who call on the store.
If you have no prior retail experience, you will probably have to hire some managing help eventually. Good help. If you have the time and energy for it, it might be wise to put in your hours at the shop for a year…get to know the pulse of the customer base, business flow and start developing and building relationships with customers, sales reps, vendors and so forth. Amount of time you put into it depends on your financial picture coming into the opportunity and how you want to put your stamp on the business as you take the reigns.
Other things to consider, your nearby competition, how the wine curation is at the shop now (and where you see it going) and the sales summary at this store in the past 3 to 5 years.
Texas here and I’ve racked up about 7 years of retail wine & spirits experience and additional time as a management consultant for new shop owners. Assuming you’re a wine nerd with a seasoned palate, it does give you some advantage compared to some new shop owners. Don’t be afraid to ask questions when dealing with the owner, any current staff, sales reps, customers and so forth.
New shop owners tend to hit struggles when they don’t know what questions to ask or they’re reluctant to (hence, be prepared to hire proven and experienced help).
Is this in a control state or three-tier state?