Do not take on the role of intermediary between parents and siblings. Encourage the parents to make decisions and to use a notary, and inform siblings that the process is under way - not about its content. Transparency of the process prevents suspicion better than secrecy.
Put your most important documents in one secure place
Sejf Życia is an encrypted space for documents, access details and instructions for loved ones. Only you decide who gets access, and when.