Using Certified Signatures instead of encrypted signed documents

I have seen a similar question from an attorney that was marked as 'answered' - but the answer totally failed to address the question. I work for a law firm, and we started using Adobe Sign to get e-signatures on documents from clients that we need to electronically file with the court. Adobe Sign default signatures are 'encrypted', and Court e-filing systems WILL NOT accept encrypted files.

When I tried the 'free' version, I got Certified signatures, with an option to add a certification stamp on each page to prove the document had been e-signed by the recipient. That works perfectly with the court efiling, and is why I purchased Adobe Sign. However, with the commercial version I have found no way to get Certified signatures -- and all options for Send for Signatures end up with an encrypted .pdf that must be printed and re-scanned before it can be efiled. This degrades the copy of the filed legal pleadings and defeats the purpose of having a Certified signature on the legal pleading.

Is there a way to use Adobe Sign for Certified signatures with a Certification Stamp similar to what is available in the 'free' version? (The 'free'​ version is only good for 2 uses per month - making it useless for my purposes)