Hawaii 50 Properties Inc, Oahu's leader in, Come join the search! Hawaii 5-0 Properties Inc. has been providing exceptional real estate services in the islands for over 30 years and now we are happy to feature the most advanced and easy to use MLS Real Estate search tools available. You can create custom searches, get daily alerts, navigate through up-to-date listing information, and schedule showings without ever having to use another site again. Search Oahu, Honolulu, Maui, Kauai, Big Island.