Spouse & I Secretly Married, Need to File Taxes But Not Alert Parents

OK! So we've got a weird question. My spouse and I married a few months ago, but in secret. Our public wedding with parents, etc isn't until spring of 2020.

 

While this doesn't pose any issue to me and my accountant, she is a minority owner in her parents' business and her taxes are tangled up in that. Her family's accountant does their taxes.

 

Is there any way that anyone here can think of, that she and I could somehow file our taxes correctly, getting the necessary paperwork done, without tipping off her parents' accountant? (My accountant is fine, he knows!)