As expected, the Delaware attorney general’s office moved Tuesday night to intervene in Bank of America’s proposed $8.5 billion settlement with Countrywide mortgage-backed noteholders. The Delaware petition to intervene and supporting brief are notable for their moderate tone, in contrast to last week’s fiery objection and counterclaims by the New York attorney general. Tuesday’s filings, signed by Delaware deputy AG Jeremy Eicher, said that Delaware is concerned about BofA’s indemnification of the MBS trustee, Bank of New York Mellon — the same conflict-of-interest allegation raised by just about every intervenor who so far has surfaced in the case. Delaware, which noted that two of the Countrywide MBS trusts are Delaware vehicles, argued that it needs more information about the proposed settlement in order to protect investors.