Assured Guaranty won a lawsuit this week against Flagstar Bank regarding a breach of representations and warranties on more than $900 million in non-agency mortgage-backed securities issued by Flagstar. Industry analysts suggest the ruling is significant as it is one of the first in favor of bond insurance companies trying to enforce breaches of reps and warrants, and U.S. District Judge Jed Rakoff endorsed many of the tactics they have used to seek buybacks, including ... [Includes two briefs]