"Short Certificate" seems to be peculiar to New Jersey, where they don't trust people to pump their own gas either.  You have to go to the courthouse and fork over at least $100 cash, to resolve a simple problem like this?  Or maybe it's Delaware. 

Put it on her return, and explain to her "stepped-up basis" so she can sell it before her heirs have the same problem.  

Edited to add:  Or it looks like you may be in Pennsylvania, where they do things the way most states gave up 50 years ago.