Estate Law Questions? Ask an Estate Lawyer.
I am sorry for your loss.
The will must be produced by law. You may remind him of that and if he wont produce you may take him to court.
also, if he files it, it would be on file in surrogate court.
from what you mentioned you should consider having an estates lawyer retained to get the will but also contest it on grounds of fraud, undue influence, and lack of capacity
Please let me know if that is clear, and if I can clarify anything, just ask me.