You can find a form Application for Probate of Will as a Muniment of Title in the Bexar County Law Library. Look for the "Texas Transaction Guide" by Dorsaneo. Before you do that, though, why do you want to probate the will as a muniment of title? Has it been more than 4 years since the date of death? If not, I recommend you go ahead and do a regular administration. That way, if some debt turns up or new asset is found which requires an administration, you have the ability to easily handle...