A complaint to the CSLB goes a long way.
Another problem I had with this article, was the presumption that that licensed contractors with building permits are the norm.
Nothing avoids property tax assessors, building permits, and licensed contractors more than house flippers, real estate sales, mortgage brokers, and its system of home inspectors, appraisers, and realtors.
Most remodel contracts are unenforceable, because the contractors are not licensed, much less able to pass inspections.
License boards lack funding resources to go after unlicensed ghosts that disappear with peoples deposits, abandon projects when AHJ's are called, and void property insurance policies, with structures riddled with construction defects.
The fact that qualified licensed and competitive bids can't match low-ball hacks destroying properties in remodel markets, begs for a mechanism to bid low, and make up the difference later.
Owners already exploited by the real-estate industry, need to be protected from themselves.
Demanding building permits is one thing that removes hacks that can't pass inspection. Demanding all safety devices is another, especially smokes & CO alarms installed per listing, which hacks can't do correctly.