Hello,
i also encountered such from our neighbor here in our province, actually, their lawyer was my prof in our school...they just asked for the lawyer to inhibit from the case.
Also, if you find sometime, you may read these sections under the Rules of Court...(im just a student in law, but i think this will help you)
1.) Section1 (extra-judicial settlement), Rule 74 (Summary settlement of estates)
2.) Sec. 6 ( when and to whom letters of administration granted) Rule 78
3.) Rule 79
try reading and ask your lawyer to help you...
That's what i did with my sis impregnated by a high ranking officer in the army...reading law books and then asking my professors...hehheh