The Fort Worth Court of Appeals recently reaffirmed that orders denying a motion to dissolve a prejudgment writ of garnishment are interlocutory and, therefore, not appealable.  Accordingly, the Court dismissed the appeal.  The Court’s memorandum opinion in MRI Country Bend Invest. Fund, L.P. v. Capitol Painting & Construction, Inc. dismissing the interlocutory appeal can be found here. 

If you are looking to challenge the denial of a motion to dissolve a prejudgment writ of garnishment, the Dallas Court of Appeals held in In re Texas American Express, Inc. that such an order may be challenged by mandamus.  That opinion can be found here.