Other top players taking part will be Angel Cabrera, Nick O'Hern, Eduardo Romero and Brian Davis.
His lawyer, Brian Davis, told Newsday that Roth will plead not guilty to the new charges.
Swede Carl Pettersson (67) and England's Brian Davis (69) shared third at 14 under.
Londoner Brian Davis was joint eighth a stroke further back on seven under following a 65.
He had a 68 and tied for sixth, along with Brian Davis (67) and Stewart Cink (70).
Raymond Roth's attorney, Brian Davis, denied in August that Roth had involved his son in the scheme.
Brian Davis files monthly reports for BBC Sport during his season on the US and European Tour.
My long-suffering partner, Brian Davis, has been hit by a ball during a pro-am on four separate occasions.
England's Brian Davis carded 65 to tie for third at 11 under, two strokes behind leader Bryce Molder.
BBC: Phil Mickelson misses cut in PGA Tour event at Colonial
English pair Justin Rose and Brian Davis were in the group behind a shot back on two under.
Englishmen Nick Dougherty and Brian Davis both shot 67 to share second at four under after the first round.
But I really love it over here and am considering joining our American cousins in re-naming myself Brian Davis II.
Phillip Price ended on 12 over as English duo Lee Westwood and Brian Davis and Scotland's Alastair Forsyth were 11 over.
Englishman Brian Davis slipped out of contention after carding a two-over par 73 to finish the day in ninth, eight shots behind the leading trio.
England's Greg Owen is four under after shooting a 67 but Ian Poulter and Brian Davis both failed to make the cut.
Our Tour player was the impeccably mannered and polite Brit, Brian Davis.
FORBES: The Waste Management Phoenix Open Is The PGA Tour's Most Fun Tournament
Brian Davis will have it all to do on Friday if he is to repeat his fine performance at Whistling Straits last year.
Leonard, the first round co-leader with Goydos, closed with a 69, in a tie for fifth place at 13 under par alongside England's Brian Davis.
On Sunday, England's Brian Davis fired a final-round 70 and was 11 off the pace, with Scot Colin Montgomerie another five shots back following a 79.
Two players have shot a 62 on the Old Course - Curtis Strange during the old Alfred Dunhill Cup in 1987 and Brian Davis in the Dunhill Links Championship in 2003.
BBC: The Open 2010: Rory McIlroy delighted with record round
Nicholson Baker, Lydia Davis, Geoff Dyer, Deborah Eisenberg, Brian Evenson, Ian Frazier, Allan Gurganus, Edward P.
The album features duets with Miles Davis, Sheryl Crow, Paul Young, Brian May, Sting and The Cranberries' Delores O'Riordan.
Others who have resigned as an MP by being appointed to the Chiltern Hundreds include Roy Jenkins, Brian Walden, Neil Kinnock, Tony Blair, David Davis, and Eric Illsley.
应用推荐