Bradley County Commission member Mark Hall was the first to pick up papers for the open District 24 House seat vacated by Kevin Brooks, who is running for mayor of Cleveland.
Several other candidates are expected to jump into the race.
Dan Howell, incumbent in District 22, is running again for that post.
Democrat Carl Lansden has picked up for the state Senate 9 seat held by Republican Todd Gardenhire.
Commissioner Hall had picked up papers earlier to run again for his commission seat. At that time all 14 incumbents had picked up to run again.
The current list includes:
1A Rick Bice, Justin Davis, Dennis Epperson, incumbent Terry Caywood
1B incumbent Mike Hughes
2A Chairman Louie Alford
2B incumbent Thomas Crye, Zach Kilby, Christopher Scoggins
3A incumbent Milan Blake
3B incumbent Johnny Mull
4A incumbent Charlotte Peak
4B incumbent Howard Thompson
5A Jerry Cross, incumbent Bobby Goins
5B incumbent Jeff Yarber
6A Tim Mason, incumbent Dan Rawls
6B Cody Herron, Tommy Ledford, incumbent Robert Rominger
7A Floyd Clevenger, incumbent Mark Hall
7B Debbie Williams, incumbent Bill Winters
Longtime Cleveland Mayor Tom Rowland, who is retiring after a record 26 years in office, endorsed Rep. Brooks as his successor at a joint press conference.
Incumbents Charlie McKenzie (1) and Bill Estes (2) have picked up for Cleveland City Council.
Lawrence D'Agata and Kenneth Webb have picked up for at-large council seats.
Cleveland City Council incumbents who have not picked up are Tom Cassada (3), David May (4) and Dale Hughes (5), Richard Banks (at large) and Avery Johnson (at large).
Troy Weathers has picked up for Cleveland School Board 4.
Others who have picked up for Bradley County posts are:
Sheriff: Eric Watson and Steve Lawson
County Mayor: D. Gary Davis
Road Superintendent: Sandra Knight Collins
Circuit Court Clerk: Dewayne Hicks, Gayla Harris Miller, Jeff Young
County Clerk: Donna Alley Simpson
Trustee: Mike Smith
Register of Deeds: Dina Swafford
Constable 1 Charles Carroll, Jeffery Alan Lewis, Garry D. Moore
Constable 2 Richard Alford, Jimmy Kendrick Jr., Robert C. Patton, Tony Whitener
Constable 3 Jason Corum
Constable 4 Wayne Henry
Constable 5 Steve Anderson
Constable 6 Tim Colbaugh, Charles Dunson, Dewayne Hicks, Rob Jensen
Constable 7 Brent Runyon