Ability vs Capacity: conservatorship

Hi all,

I have a caseworker that wants my conservatee to sign paperwork on the appropriate lines that indicate my conservatee is the "Recipient" of the services. The caseworker's viewpoint is "We want them to sign if they have the physical capacity to sign, even if its just a mark."

From my understanding, my conservatee legally cannot sign the paperwork as I am his conservator and serve that function. My conservatee has the physical ability to sign, but does not have the mental capacity to understand the nuances of what my conservatee is signing and attesting to.

Thanks for any insight.