This Old Code

In hindsight I should have started with the MISMO enumeration decorated by the Closing version.  Never the less it’s pretty straight forward to export a Point file into MISMO Closing 2.5 format. 

var myLoan = Calyx.Point.Data.DataFolderServices.LoanInfo.CreateFrom(@"c:\test.brw");
myLoan.ToMismo( Calyx.Point.Data.MismoFormat.Closing,@"c:\mismoTest.xml");
myLoan.Close();

 LoanFile.ToMismo(MismoFormat, String)  will write an xml  however you can call  LoanFile.ToMismo(MismoFormat)  an XmlDocument.