 The Southfield-based Foster McCollum White and Associates consulting firm sued Johnson in 2012, alleging he stiffed it on a $10,000 bill and then hurt the business by badmouthing it as the firm sought another contract.A court eventually ordered Johnson to pay $2,500, but it took 15 months for him to settle the debt.Johnson owes the Chicago-based Paladin Political Group more than $29,000 for 2013 fundraising work.