Ocwen Financial’s pending purchase of subprime servicer Saxon Mortgage is just the latest growth spurt for the firm. “We are looking at other transactions as we speak,” William Erbey, chairman of Ocwen, said last week on a call with investors. Even with the Saxon deal, Erbey said Ocwen’s pipeline of potential acquisitions increased in the third quarter of 2011 compared with the previous quarter, to more than $300.0 billion in unpaid principal balance. ...