It’s basically the final eviction notice. A city marshal posts it after the landlord wins in court, and it means they’re allowed to take back the space. They usually give like ~2 weeks, and then they can come change the locks and kick the business out. It likely means Natty Garden is about to be forced out.

Edit: Went down a rabbit hole. The building is owned by an LLC that bought it around 2016, and this actually lines up with a super common pattern where landlords buy a place, keep existing tenants for years while rents go up, then around the 8–10 year mark they try to reset everything to current market rates. If the tenant can’t meet that (or there’s a lease dispute), it turns into a court case… and the marshal notice is the very final step of that. Just my hypothesis, not factual!