Trying to navigate the complexities of the legal system at the same time is more than you need to worry about right now. Instead, it is recommendable that you hire attorney.
"Dealing with the death of a family member is one of the most emotionally draining and mentally challenging events possible."
Attorney will lift the burden of legal details off your shoulders during this challenging time. You won't have to concern yourself with any of it.
From filing the appropriate paperwork with the courts to distribution agreements and land registry, attorney will handle the process from beginning to end.