WI, you are welcome!
I wanted to add that a client with dementia will not remember a visitor, and if the spouse is absent, and/or the family is intermittent in their involvement, it may be a good idea to note it that people are coming into the house (unless you know them). I would want to know if it were my parents due to all the funeral, cemetery and financial scammers.
As to the mail, again if the client has altered mental status and family is absent, it may behoove a caregiver to glance for "IMPORTANT NOTICE" mail from the local electric or gas company.
In the case of the former caregiver, if you know this piece of mail is going to upset the client, you might save your entire team a lot of agony in the effort it may take to help restore the client to their previous state of "norm." How you would go about this would be the arrangement decided upon by all concerned parties, including the client.
Sorry to hear you do not have a "go-to" person, but it sounds like you are doing an outstanding job as a Home Care Nurse.