Okay so here’s my take on HECM or Reverse Mortgages.
The packages are large, between 230-280 pages depending on the lender. Check your instructions, because Sometimes you’re not required to print two copies. Most of the signatures, dates and notarizations will take place in the first 100 pages (not in all cases) and you should see a page or section that indicates the borrowers copies (again, not in all but most cases).
As @Arichter said treat it as a normal refinance. As @cNsa5 said you will have to gather specific documents from the borrower, but that’s generally on the application side. Remember you’re Not their counselor, if they have specific questions pause the signing, make the call to the designated person to get the question answered promptly and correctly. As @Arichter said, in most cases they have been counseled near to tears and just want this process over and done with.
Remember there are no stupid questions… (well, not in this case 
)
Wishing you many successful signing