Experienced, Full-Service Property Management in Manhattan, Kansas Established in 1980, Alliance Property Management offers full-service property management so that our tenants will love where they live and work. Based in Manhattan and proudly serving the surrounding areas, our portfolio includes commercial properties as well as single and multi-family homes. Our mission is to provide the very best services for our properties and our tenants at a reasonable cost. In addition to offering the very best in customer service, we utilize the latest technology to make the rental process as easy as possible for each and every one of our clients.