Adam Levitin on the San Francisco Audit: Why no investigation?

Adam writes:

Here's a bombshell: the San Francisco City Assessor commissioned a serious audit of foreclosure documentation filed in the past few years. The audit examined 400 foreclosures. It found problems with 85% of them, often multiple problems. What's more, some of the problems are pretty serious as they implicate not only borrowers' rights, but the integrity of mortgage-backed securities and the property title system. 

The San Francisco City Assessor's audit also serves as a benchmark for evaluating the Federal-State servicing settlement. The San Francisco City Assessor managed to accomplish in a few months what the Federal government and state Attorneys General weren't able to do in nearly a year and a half with far greater resources at their disposal: perform a credible investigation of foreclosure documentation with serious implications about the securitization process in general. That's a lot of egg on the face of Shaun Donovan, Eric Holder, Tom Miller, et al. The SF City Assessor report shows that it really wasn't so hard for a motivated party to undertake a serious investigation. And that raises the question of why the largest consumer fraud settlement in history proceeded with virtually no investigation...