Nationstar (NSM) is making leadership changes that are part of the company growing more mature and leveraging the strengths of its executive team to support the company’s operations.

The company is one of three major nonbanks changing the mortgage servicing landscape. Nationstar has grown to over 2.3 million customers, and the company wants to keep its focus on providing solutions to homeowners and loan performance for investors, a spokesman said.

David Hisey is being appointed chief strategy and external affairs officer.  Hisey will lead several key departments that have been aligned to develop and drive implementation of the company’s strategic plans and external relations efforts. Those departments include corporate strategy and development, customer relations, government, agency and industry relations, compliance, and corporate communication.

Hisey formerly held various executive roles at Fannie Mae, including deputy CFO, during his seven year tenure.

“We place the utmost importance on building and fostering our external relationships,” said Nationstar Chief Executive Officer, Jay Bray. “David’s wealth of experience working with senior agency and industry leaders across the mortgage and real estate market makes him the ideal person to lead these departments. As Nationstar continues to build out our diversified real estate services platform, it is imperative that we have a dedicated team with a thoughtful leader, like David, at the center of our strategic plan for growth.”

Robert Stiles will expand his responsibilities and assume the CFO role at Nationstar.

Stiles is the current CFO of Solutionstar, a wholly-owned subsidiary of Nationstar.

Previously, Stiles served as the CFO for Altisource Portfolio Solutions, a publicly-traded real estate solutions provider, for three years. Before joining Altisource, Stiles was the director and controller for Centerline Capital, a real estate finance company. He has held senior financial leadership positions with Viacom, Time Warner and KPMG.

“Robert brings over 20 years of accounting and financing experience to the chief financial officer position. Since joining Solutionstar, Robert has helped grow this business into a major contributor to Nationstar’s overall corporate success,” Bray said.