We captured the owners names of all 8,388 properties in zip code of 20128 for East Boston from AnalyzeBoston. We used 2017 data. We defined an Owner-Occupant as a property listed as taking the residential exemption, of which there were 3,466. This left 4,922 properties remaining. Of these, many owners had multiple properties, and therefore, we consolidated these properties and only used one last name per group of properties. Furthermore, we removed all properties owned by a company for which the company name did not start with a last name. For example, if a property was owned by "123 Street LLC", it was removed; but if it was owned by "Smith Family LLC" it was included using the last name of "Smith." After removing duplicates and businesses we were left with 2,182 last names of owners who did not take the residential exemption. These owners we called Landlords. Once we had all the last names, we searched the prevalence of the last name around the world by searching the name using forebear.io . This gave us every country in which the name exists with the corresponding number of incidents of that name in each country (for example, there might be 45,878 incidents of the last name of "Robinson" in England). Some names existed in only one country. Some names existed in over 200 countries. We collected the Top 10 countries in which each name exists. We then tallied the total number of times a country existed in the Top 10 of each name. Using this tally gave us our final numbers of prevalence around the world.