Ann Romney's brother Roderick Davies, who filed for bankruptcy in 2010, and nephew Ryan Davies, who oversaw a now-bankrupt green energy venture, have both been out on the campaign trail to offer support for Romney. But back in Utah, the two men have left a trail of unhappy business partners, a number of whom spoke with ABC News to express concern about how the two might try and capitalize on a Romney presidency.

Andy Neff, a Florida financial advisor who says he lost a top client and his own savings investing in Ryan Davies's ill-fated solar energy venture, said Davies repeatedly assured him that his famous uncle Mitt was mentoring him, right up until his company filed for bankruptcy.