Land Subdivision

Good Day! I just need your thoughts, opinion or advices regarding my family's problem. There are 5 siblings, lets say si A, B, C, D, E (all are deceased). Si E, merong syang mga iniwan na property (lot) kina A, B, C, D. Yung property na iniwan kay A (which is lolo ko) eh yung land na kung saan kami nakatira and itong property ay nakapangalan sa lolo ko (si A) dun sa tax declaration of land at kami rin yung ngbabayad ng buwis sa lupa. Ngayon, ang heirs ni B, C, at D gustong makihati dun sa lupa na nakapangalan kay A at pina survey na po nila ang pag subdivide ng lupa.

Question ko po, is it possible na mapunta sa kanila yung portions ng lupa kahit nakapangalan sa lolo ko? Kasi tax declaration lang po yung meron kami.

Thank you in advance

Hello Everyone! I am going to buy po the house of my mother. My father died last April. I have 3 siblings, the eldest is living in Canada. How I will go about it?