Ottawa should revive tax incentives that make it attractive for developers to build more rental housing, NDP MP Libby Davies says. The federal Liberals essentially abandoned any involvement in housing in the mid-1990s, and successive governments have also shown little interest in the file, Davies said Saturday in Kelowna. “There were various programs available that provided incentives for the development of rental housing, but they‘re all long gone,” Davies, who represents the riding of Vancouver East, said after addressing local NDP members.