SNOHOMISH COUNTY, Wash. — A group of people is walking up to families’ front doors in Snohomish County, saying they are the rightful owners of waterfront homes. The group has taken over homes in different parts of the country, claiming legal ownership of the land beneath it. In one case, they told a homeowner she was being evicted. Edmonds detectives say the group knocked on doors in the most upscale neighborhoods in Woodway and Edmonds, identifying themselves as Moorish Sovereign Citizens. They carry official-looking documents, say they own the property and announce they’re moving in. “They have basically come to...