Yoko Ono, wife of legendary Beatles front man John Lennon, is set to become the longest-tenured homeowner in the famous NYF Dakota Aparments. The apartment, owned by the late Steven Rubin, was put up for sale after Rubin's wife passed away earlier this year. The property is estimated to be sold for around $8 million, making Ono the longest tenured homeowner at the building. The original purchase of the Ono/Lennon property was between $150,000 and $200,000, making it now worth around $20 million. Ono and Lennon bought the apartment in 1973 and raised their son Sean Lennon there until 1980, when the elder Lennon was murdered by Mark David Chapman.