A condominium is usually a non-profit corporation, so those laws govern some aspects of the association's business. Otherwise, the California State condominium law offers the basis for your association's governing documents.
Read your governing documents to determine what needs regulating and work with your board to affect the result you want. Also, fully understand your responsibilities thereunder.
If your association is run by a 'rogue' board, you can collect other owners and vote in a new board.
In most states, a state law is the basis for condominium ownership, development and governance. Below is a link from the State of California for condominium consumers.
If the bank in California has chosen to go with a state charter (instead of a federal charter), the agency regulating that bank is named "The California Department of Financial Institutions."
erisa?
What Federal Agency regulates ADT Security
Governments do not try to regulate your emotional mood. If such an agency existed it would be called the Department of Good Cheer, I suppose.
federal agency that regulates the Stock Market
The industry an agency regulates controls the agency that is supposed to regulate it.
FDIC
erisa?
ftc
Commission
The Federal Communications Commission regulates telephone services.