You have to understand that the responsibility of the executor is to follow the intentions of the deceased under the supervision of the probate court. The executor reports to the probate court, not to the beneficiaries. Until the time comes to close the estate, the executor is not required to consult with or report to the beneficiaries. Generally, before that, about the only legal obligation is to notify beneficiaries that they may stand to inherit under the terms of the will, which it sounds like the executor did. There may be states that require an actual "reading of the will," but I am not aware of them. And I know that PA is not one of them.
Now, it would be nice if the executor were to communicate regulalry and try to accomodate individual beneficiary wishes within the terms of the will. But that is not an obligation. My point about "consensus among 8 people" was that the executor may have simply decided that trying to get 8 people to agree on things is simply opening himself up to a whirlwind of time-consuming trouble amd using his authority as executor to do what the will dictates is the better course.
Similarly, the attorney for the estate works for the executor, not the beneficiaries. The estate attorney may or may not be willing to answer questions from beneficiaries. It is my experience that most estate attornies will decline to so unless authorized by the executor, particularly if there appears to be contentionous among the beneficiaries.
You keep referring to the uncles "dragging his feet." As GaAtty said, opening probate in less than 2 months is reasonable. 6 months to close the estate is very reasonable. I would have pushed that to one year. Think about this: what if the executor rushes things, distributes all the estate assets, and a previously unknown creditor pops up within the timeframe that PA law allows a creditor to make a claim against the estate? The executor could be held personally liable to the creditor.
I keep looking at your posts for some sign of wrongdoing on the exeuctor's part. I see complaints about foot dragging (2 months isn't by itself foot dragging), lack of communication, and "let it all go to your head." None of those is going to get you very far before the probate judge. Also, some hints about the car, but nothing specific. Certainly, if uncle sold the car and intends to simply pocket the money, or gave it away, or sold it for far less than fair market value, then you have something to object to. If he sold it for fair market value and the sale proceeds are to be part of the estate to be distributed according to the will, then there is no wrongdoing.