Staff ReportsSeven lawyers, including District Attorney Mark Jackson, have filed applications seeking to take over for District Judge Dave Gamble when he retires early next year.Other local applicants include Minden attorneys Tod Young, 54, and James R. Hales, 53.The Nevada Commission on Judicial Selection set a 5 p.m. deadline today for the applications to fill the seat on the Ninth Judicial District Court. Gamble, 61, who has served on the District Court bench in Douglas County since 1987 — longer than any other sitting judge in Nevada — will retire on Jan. 6.The application was open to all Nevada attorneys …