Property ownership information can be requested from the County Registrar-Recorder/County Clerk. For more information, please visit their website to Request a Real Estate Record.
The CC&Rs must be recorded with the county recorder's office in order to create certain restrictions on the property and provide recorded notice of the contractual obligations on the deed to prospective buyers. You should be able to find a copy of the CC&Rs on your county assessor's official government website.
If a CC&Rs expiration clause is written within the declaration, then the covenants will expire. For example, if your declaration says that covenants have a lifespan of 20 years, then they will no longer be enforceable past that point.
What are unenforceable HOA rules? Keep you out of court. Hush up litigation. Discriminate indiscriminately. Enter your home without cause or notice. String you out on the (clothes)line. Fine you for fun. Change rules on the fly. Demand you take down your dish.
Legally yes, CCRs run with the land and unless they were initially created with some expiration date on them, they stay with the land forever. There are 3 entities who can enforce them... the developer if they are still around... any HOA.. and any homeowner.