Richard Torbay Independent Adam Marshall National A by-election was held for the New South Wales Legislative Assembly seat of Northern Tablelands on 25 May 2013.

Immediately prior to his resignation, the National disendorsed Torbay as preselected candidate for New England.

It was claimed that his resignation was due to the controversy surrounding his ownership of more than twenty Centrelink buildings dating back to the era when John Howard was Prime Minister.

[4] Former mayor of Gunnedah Shire, Adam Marshall, won preselection as the Nationals nominee ahead of Jock Laurie and Claire Coulton.

[4][6] One week prior to the by-election, Mal Peters, a councillor of Inverell Shire Council referred a matter of an undisclosed nature relating to Marshall to the Independent Commission Against Corruption.