I went with a lawyer on this site.
Steps:
Acquire all documents related to a grandchild application.
Discuss terms and steps with lawyer.
Scan documents
Hire lawyer
Lawyer review documents
Documents translated
The application has been submitted online with scanned documents on my behalf.
The next step is to
Arrive in Argentina when ready and submit physical original documents.
After that await some time and I can receive my citizenship.
This lawyer's estimated time is 3-4 months, all depending on the judge.
As you can see I joined this site october 19 when this question started. Things take time. Especially documents.