Key facts: Tax liens attach to real property and survive probate transfer under ND Century Code Title 30.1; property tax liens in ND arise after three years of nonpayment under NDCC Chapter 57-02; estates below $50,000 may qualify for simplified small estate procedures under NDCC Section 30.1-23-01; a 30-day waiting period applies to creditor claims during which taxing authorities must file claims; federal tax liens filed with the county recorder create constructive notice to all subsequent purchasers; heirs may become personally liable for inherited tax liens depending on how property transfer is structured.