This is one of the sources for the linked article:

https://missionlocal.org/2026/09/four-murals-in-clarion-alle...

>“CAMP has had both written and verbal agreements/understandings with property owners and landlords regarding murals on Clarion Alley for 34, going on 35 years,” read a statement from Clarion Alley Mural Project.

This should have been mentioned in the original article. It also should be obvious, I think. Why would you assume that high-quality murals created by an established institution were done without proper legal arrangements?