State-Boston Retirement System is searching for at least one manager to run up to a total of $60 million in value-added real estate, said Glenn M. Johnson, a consultant with New England Pension Consultants, the $3.6 billion plan's consultant. The allocation is new and no manager is being terminated; assets for the new hire will come from rebalancing. Interested managers must have at least $500 million in real estate assets under management as of Sept. 30 and at least two existing public fund clients. Prospective managers must also agree to comply with Massachusetts General Law Chapter 32 and investment guidelines administered by Massachusetts' Public Employee Retirement Administration Commission, including the restriction on investing in tobacco-related companies. Formal requests for RFPs should be emailed to [email protected] no later than 5 p.m. EST Nov. 16; proposals are due at 4 p.m. Nov. 30 to Mr. Johnson at [email protected] or by mail at New England Pension Consultants, 1 Main St., Cambridge, MA 02142.