DUBLIN (Reuters) -Ireland's presidential election will be contested by a former minister and a left-wing lawmaker after a third candidate, a former Gaelic football coach, pulled out of the contest following questions about his time as a landlord almost 20 years ago. The withdrawal by Jim Gavin on Sunday, the candidate for Fianna Fail, one of Ireland's two governing parties, means the contest for the largely ceremonial role will now be a straight shootout between independent lawmaker Catherine Connolly and ex-minister Heather Humphreys. Connolly, one of the leading pro-Palestinian voices in parliament, has built up a coalition representing most of the opposition, including the largest member Sinn Fein, which opted not to put forward a candidate of its own.