The Lexington (Mass.) Retirement System issued an RFP for a manager to run roughly $5 million in a commingled, value-added real estate fund, according to a posting on the Massachusetts Public Employee Retirement Administration Commission's website. Marguerite Oliva, retirement administrator for the $85 million system, could not be reached for further details. The RFP can be requested through the retirement system's investment consultant's website, at www.meketagroup.com/mgrCenter.php. Proposals are due Jan. 19.