It's an honor. Assessment should be done early and often. Once a year at least. But there are two reasons why this could be much more easily and equitably done than it is at present. One, we'd only be dealing with land.
Improvements are much more troublesome to accurately assess.
Two, technology could be brought to bear that would re-assess whenever new sales or other factors were recorded. Real estate values are customarily assessed with great accuracy by people in the real estate business, and very sloppily by municipal assessors. But under land value taxation, the entire community would be in the real estate business, and the incentive would be to assess accurately. George's remedy proposes to attack these problems at their root. If it did indeed work, it would remove the need for rent control, and many other such uneconomic adjustments.