To suppress the 8959 in Lacerte you can override the community property rules in Screen 3 using the field "Apply community property rules: 1=no, 2=yes" by entering a '1'.

However, I'm not certain if there are any penalties the IRS would apply to the spouses for not filing the form when required. I didn't see anything referencing it in the instructions or within a quick search through IRS FAQs. Lacerte will not produce any additional information.