Walters and Luft note that the transaction was complex in that it involved negotiating an early lease termination for approximately 15,000 sf of excess space, while simultaneously renewing Regulus' lease/sublease for an additional five years. "The end result was that we were able to accomplish Regulus' goal of reducing their overall cost of occupancy," Luft says.

Charter Holdings, Inc., the master sublessor of the office building, was represented by Jason Warner and Nick Warner of CB Richard Ellis. The deal follows a recent lease reported by GlobeSt.com in which Bank of America signed a $28-million lease for 83,000 sf at the 1200 W. Seventh St. building, a deal that was integral to a plan by master lease holder Charter Holdings to spend $30 million in improvements to the 740,000-sf building.

In the US Bank Tower lease, Cornerstone Research signed a long-term deal for its space in the building at 633 W. Fifth St. Cornerstone was represented by Cushman & Wakefield's Brian Ulf and Andrew Altman, with landlord Maguire Properties represented in-house by Pat McRoskey, Lalo Diaz and Josh Wrobel.

Cornerstone, which was previously located at 515 S. Flower St., has already moved onto the 31st floor and will eventually expand onto a portion of the 32nd floor of the office tower. The firm specializes in providing attorneys with litigation consulting and expert testimony in complex litigation, specializing in the areas of intellectual property, securities, financial institutions, antitrust, energy and accounting.