"Authenticated" copies of legal documents (and a will and death certificate are legal documents) are considered to have the same... how we say in english? Legal Power?
Send them by snail mail (together with any legal document copy that states you have right over the matter), with proof of delivery (so you can prove they received it).and they *SHOULD* grant you the access you requested - otherwise, they're stalling you and are subject to legal penalties.
Of course, this is applicable to "normal", "real life" things. By some reason, people things that anything "virtual" is beyond the present legislation - even when present legislation money and contracts are involved. Go figure it out.
Right, and at the moment the will isn't authenticated (that's the 'expensive' step involving the court that the family is complaining about). It's not always strictly necessary to do it, but in certain cases like this (or a locked safe, or a family that is challenging the will etc) it is required. That is all Apple is asking for here along with certification that the iPad involved did belong to the dead person.