Tenant Refuses to Receive 30-day Notice

[Rhonda Nelson]

Tenant's lease terms/ends in 35 days but they refuse to sign for the certified 30-day notice to vacate property which was sent certified mail and overnight.  If they "don't receive the 30-day notice" from the landlord the lease may allow them a month-to-month tenancy at the conclusion of the lease.  Can they claim they never received notice if they refuse to sign for documents that were sent to them?