Mary,
As others have pointed out it most laws work with each other, that is to say each law giving more specifics about the issue.
As an example (and it' not great): State law might allow for the towing of cars. County Code might specify what type of signage is required. City Ordnance might specify owners of private property can have cars towed. HOA Covenants might identify that commercial vehicles will be towed if parked in the common area (private property). As long as everyone is complying with the higher governing body and there is no conflicting language - then there are no problems.
When there is a conflict between the laws/governing documents, you need to read the language of the laws/documents to determine which one controls. This is because many State laws will defer to the governing documents by having language like:
Unless the [document] provides for a [greater/lesser] amount
If the [document] is silent then xyz
A thread was started awhile ago that discussed how to read statutes that might be helpful:
http://www.hoatalk.com/Forum/tabid/55/view/topic/postid/103015/Default.aspx Typically, the order of Precedence is:
Federal Law
Federal Regulations
State Law
County Code
City Ordnances
Declaration of Covenants Conditions and Restrictions (CC&Rs)
Articles of Incorporation
Bylaws
Resolutions adopted by the Board
Hope this helps,
Tim