Dozens of residents who are suing the city of Reno over the flooding of their homes in 2017 are moving to federal court in a complex case that could cost taxpayers millions of dollars. The move comes as the city’s related appeal to the Nevada Supreme Court is pending. Lemmon Valley residents who filed a class-action suit won a jury verdict in Washoe County District Court in 2019 that determined Reno was responsible for the dramatic flooding that left their homes north of town under water for years.