Douglas Marr of Keliher Real Estate has sold a 20,000 s/f lot at 99 Tremont St. in the Oak Sq. District for $2 million for the Lombardi Family Trust to Jim Keliher of Mainsail Management. Keliher is building a 62-unit rental property with 94 parking spaces 7-story structure. He is partnering up a joint venture with the Seracen Properties. This permitted 62-unit building will break ground soon and is expected to be completed in 16 to 18 months.