You purchase a tiny plot of land (often 1 square foot) and receive a certificate stating you are now a "Lord" or "Lady".
Another popular online option comes from the Principality of Sealand , a self-declared sovereign nation on a former WWII platform off the English coast. buying a lordship online
Under Scottish law, these plots are too small to be officially registered, meaning you don't legally own the land. The Court of the Lord Lyon (Scotland's heraldic authority) explicitly states that owning a souvenir plot does not grant any official title. You purchase a tiny plot of land (often