The vast majority of repurchase requests on mortgages in non-agency mortgage-backed securities were in dispute in the first quarter of 2012, according to an Inside Nonconforming Markets analysis of Securities and Exchange Commission 15Ga disclosures. However, industry analysts expect settlements to increase during the second half of this year. Securitizers reported $29.03 billion in mortgages in non-agency MBS with repurchase demands in the first quarter of 2012, with 98.6 percent of the volume classified as in dispute ... [Includes one chart]