Paul Mulroy, senior vice president of O'Brien Commercial Properties, Inc., recently represented Nexius Solutions, Inc., in leasing 11,355 s/f of flex space at 7 Lyberty Way. Nexius, a nationwide leader in wireless services and software solutions, will be opening up their first office in the Northeast and their 17th in the country. The landlord, Ryan Development, was represented by Omni Properties. Also, Eric O'Brien and Joseph Belsito of O'Brien Commercial Properties, have secured another tenant at Mill Pond Sq. Lexvest Partners, owners of 63 Great Rd. in Maynard, have signed a lease with Sean Wytral and Jessica Clements for 900 s/f of office space. O'Brien Commercial Properties procured the tenant directly and exclusively represents the landlord.