If no will, and if got real estate property, where the value of the entire deceased's estate is below RM2 million, you can apply for Pusaka Kecil at the Land office. Can be done yourself. But got lots of Forms to fill in, ask the land office clerk for the borangs.

You look at your geran, which mukim/daerah does it state? Timur Laut, Mukim 6 Daerah Seberang Perai, etc, you go to the relevant Land Office to apply.

Alternatively you can go court, but that requries a lawyer.