Credit-product investor John Aylward, who runs money exclusively for Paloma Partners, is moving ahead with plans to recruit other limited partners.Aylward has set a $500 million capital-raising target. He plans to park the commitments in a yet-to-be-named hedge fund that would launch in February via his London-based Sona Asset Management.The first $100 million would go into a founders share class with discounted fees.Sona employs fundamental...