I thought having a Power of Attorney would work but I am finding out
that many (most??) institutions either want you to fill out their own forms
or else require that both parties fill out a supplemental form(theirs) that certifies that the POA is valid, has not been amended, has the required powers,etc (mainly, I think, to absolve them of blame in case anything goes wrong). If you do this while both parties are present and ok, I guess you're ok but if not, there might be problems when you try to use the POA.
You might want to check if yours would work w/ several institutions that
you care about.
that many (most??) institutions either want you to fill out their own forms
or else require that both parties fill out a supplemental form(theirs) that certifies that the POA is valid, has not been amended, has the required powers,etc (mainly, I think, to absolve them of blame in case anything goes wrong). If you do this while both parties are present and ok, I guess you're ok but if not, there might be problems when you try to use the POA.
You might want to check if yours would work w/ several institutions that
you care about.