(Bloomberg) -- PrimaLend Capital Partners filed for bankruptcy after months of negotiations with creditors following missed interest payments on its debt, the latest sign of stress in a pocket of the US economy catering to low-income consumers. The Plano, Texas-based provider of financing to auto dealerships focused on subprime borrowers said it was pursuing a sale of the business in bankruptcy court and would continue to fund and service loans to its own borrowers. It also said it has received commitments ...