I am a subcontractor, I send a Notice to Owner to the address that appear on the drawings as the physical address of the owner. The notice was sent through certified mail. The UPS tracking number show the Notice to owner as been deliver to the front desk, reception area or mail room. the owner is stating she never received the notice. She is Saying i don't have no legal rights to Lien the Property. Is this correct? do i still have any rights? the GC of the job received this notice to owner.