A title block can be imported from a DWG file.
While looking at a Sheet tab, click File > Import AutoCAD DWG.
Navigate to and select the title block DWG file.
Pay attention to the 'AutoCAD Block' to copy to the drawing option. Title blocks are typically drawn in Paper Space, so the *Paper_Space "block" should be selected (Do not forget to switch this option back to *Model_Space the next time a model is to be imported.)