I assume that what you are wanting to do is create one document at a time
from records in a database.  If that is the case, instead of using
mailmerge, create a template in which you have a userform and use the
following code to populate a List box on a userform that then populate
document variables with the data from the selected record and have it
displayed in the document that is created from the template by having
DOCVARIABLE fields in the template.

Private Sub UserForm_Initialize()
   Dim db As DAO.Database
   Dim rs As DAO.Recordset
   Dim NoOfRecords As Long
   ' Open the database
   Set db = OpenDatabase("D:\Access\ResidencesXP.mdb")
   ' Retrieve the recordset
   Set rs = db.OpenRecordset("SELECT * FROM Owners")
   ' Determine the number of retrieved records
   With rs
        .MoveLast
        NoOfRecords = .RecordCount
        .MoveFirst
   End With
   ' Set the number of Columns = number of Fields in recordset
   ListBox1.ColumnCount = rs.Fields.Count
   ' Load the ListBox with the retrieved records
   ListBox1.Column = rs.GetRows(NoOfRecords)
   ' Cleanup
   rs.Close
   db.Close
   Set rs = Nothing
   Set db = Nothing
End Sub