Excellence Alliance, Inc. (Cincinnati, OH) has created a new marketing piece for its independent contractor members — a magazine for residential hvac customers called Comfort Living. The magazine is targeted to the female head-of-household and is said to be designed with a Martha Stewart feel.

Corporate Office Management, Inc., an affiliate of Corporate Office Properties Trust (Bala Cynwyd, PA), has acquired a majority interest in Martin G. Knott & Associates, LLC, an hvac service company based in Owings Mills, MD. Knott currently services more than 130 companies in the Baltimore, MD-Washington, DC area.