PHILADELPHIA — The Philadelphia office of Marcus & Millichap has brokered the sale of a commercial real estate portfolio for $60.1 million. The portfolio contains 13 single-tenant properties located across the country. Nine of the properties were fee simple and subject to 25-year absolute net leases, each with four 5-year extension options. The remaining five properties were with a leasehold interest. Marcus & Millichap's Mark Taylor, Dean Zang and Christopher Munley represented both parties in the transaction. Details about the properties as well as the parties involved were not released.