Fullerton, CA. (May 7, 2015) – Following another recent transaction by Healthcare Property Advisors (HPA Realty Inc.) for the largest 2014 Orange County acquisition of a medical office portfolio in Mission Viejo, today, HPA Realty Inc. announced it has completed a multi-year lease transaction on behalf of St. Joseph Heritage Healthcare, a member of the St. Joseph Hoag Health alliance based in Orange County, California.