Attorney General Martha Coakley called on the Obama administration to replace Ed DeMarco, head of the Federal Housing Finance Agency and overseer of Fannie Mae and Freddie Mac, during a statewide foreclosure counselor training this morning.

The event in Boston’s Back Bay marked the first anniversary of the landmark settlement between several of the nation’s largest banks and 49 states’ attorneys general for unlawful foreclosures during the housing crisis. Massachusetts received $318 million from the settlement.

However, DeMarco has refused to consider principal modification for distressed Fannie and Freddie loans, a position which has gained him praise from lenders, but proved a longstanding bone of contention for homeowner advocates.

The housing finance chief’s refusal to consider principal mods has hampered Coakley’s office in its efforts to aid Massachusetts homeowners, she said. As part of the settlement, Coakley’s office established a homeowner hotline to help consumers obtain loan modifications. The attorney general said the hotline has handled 15,000 calls since April and continues to receive an average of 70 calls per day. The attorney general’s office is currently working with more than 3,000 families and has obtained more than $13 million in modifications for the consumers it helps.

But the “last straw” Coakley said, was DeMarco’s announcement that Fannie and Freddie did not intend to comply with a new Massachusetts law that requires lenders to demonstrate that they have considered a loan modification before launching a foreclosure.

“We’re not going to do this with one hand tied behind our back,” Coakley said.