“Knock knock, is anybody home? It’s SOS,” says Leyla Williams as she approaches one of the many hidden makeshift houses along Wildcat Creek. “Does anyone need services?” she asks, scaling the homemade stairs that lead to the tents and tarpaulin shelters. “I don’t think anyone is home.” This was the second stop of the day for the team at of Safe Organized Spaces Richmond, a nonprofit service provider for unhoused people. Their first stop was the extensive encampment where tents…