A couple of thoughts:
- USPAP applies only to confidential information and/or assignment results. If the outside of the house is showing signs of deterioration and neglect, that would not be a confidential situation, as the condition is observable by the public. I would imagine if the interior is in poor condition, the exterior exhibits similar issues.
- The confidentiality rule only applies to the client. It doesn't sound like your client has asked you to consider the subject's condition as a confidential matter, nor have you provided them with any assignment results.
- USPAP does allow you to disclose information to State enforcement agencies and third parties authorized by due process of law. While it may be a loose interpretation of this statement, disclosing deplorable living conditions to the State Welfare Agency may be a possibility.
- Not sure about New York, but in Michigan, in addition to the State Agencies that handle this type of issue, we also have volunteer ombudsmen that regularly visit nursing homes, adult foster care homes, some identified individuals, etc. to make sure they are receiving appropriate care, to be available to talk with those individuals that have come concern and to assist them with navigating the system.
My recommendation would be to contact your client and inform them of your observations regarding the property's condition. Then I would contact a local nursing home and ask to speak with one of their social workers to see if they can provide you with some direction or a contact. Another avenue would be the County Health Department. Discuss your exterior (visible from public property) observations and ask them to follow up. Based on their exterior observation, there may be sufficient evidence to justify a welfare check and/or possibly initiate a conversation with the family. You can explain how USPAP limits your options, but you feel that, based on an external observation, they will gain an understanding of your concerns.