NEW YORK CITY-Boston-based REIT Boston Properties is on its way for getting its second tenant for its latest Midtown development. Unnamed sources told Crain’s New York Business that law firm Kaye Scholer has signed a letter of intent for around 260,000 square feet at 250 W. 55^th St. The people told Crain’s that if a lease is officially inked, the deal would bring the one-million-square-foot building to nearly half-full.

The law firm has agreed to pay between $85 and $90 a square foot for a 20-year term, the sources said. Kaye Scholer, which is currently located at 425 Park Ave., would be the second major law firm to take space at the 39-story office tower, joining Morrison & Foerster, who leased 180,000 square feet last year.

Douglas Linde, president of Boston Properties, told investors during NAREIT’s REITWeek event in June that the company is seeing “a lot of activity” at 250 W. 55th St, which recently topped out in the spring. “Good things seem to be happening,” he previously stated. “The point being, there are tenants out looking for a couple 100,000 square foot blocks of space that need to make a decision by early 2013 or ‘14” he added. “We feel reasonably optimistic that we will have another transaction that we will be able to describe to the investor world between now and the end of the year, and we are confident in our ability to fill that building.”