Yes, I am a lawyer with mind dyslexia and I often got into trouble for missing stuff on my letters or rearranging the letters of things like the other parties names or case numbers etc. So I use the LaTeX letter document class and import the other parties information from an adr file. That way I only have to type the darn thing once. I think I can automate more stuff on documents where I often make errors but I'm just getting started with LaTeX. It's been a big stress reliever for me.
Interesting. I always instruct my lawyers to reference all counterparty information only once, either in the header or preferably in the signature block, and then make everything else reference an impersonal defined term. I hate transaction-specific information being littered randomly around a document.