InnVentures, a division of Highgate that specializes in the management of premium select-service and extended stay hotels, announced today the addition of two hotels to its portfolio. InnVentures will assume management of the Embassy Suites Portland Washington Square, Oregon and Embassy Suites Seattle Bellevue, Washington. The hotels represent 596 keys, the company's third and fourth Embassy Suites under management, and bring the total number of properties managed by InnVentures to 85.