The Highlands Residential Services office and tenant portal were closed Wednesday as the agency upgraded its system to support the transition of properties to Section Eight housing. Highlands Residential Services has been in a multi-year transition of all its public housing units to Section 8 housing under the Rental Assistance Demonstration program. Highlands Residential Services Executive Director Chris Cassetty said the new system was needed as HRS is currently transitioning its 34 public housing units in Celina. He also said the benefit of this change is not to confuse the data of converted properties with properties that have not. We are kind of working our way in.”Cassettty said more stable funding is the benefit of transitioning its public housing units to Section 8 housing under the RAD program.