Succession/inheritance in Poland

I'm living in Sweden and was told that my grandmother who I didn't have any contact with has passed away. I've completed the Swedish papers but now I need to do all the polish ones. My dad has also passed away so everything is on my shoulders. She has a bought apartment in a big city. Is there a way to somehow find it online?

I don't even think that I am written as her grandchild in Poland. How do I manage all of this?

I'd say that you really do need a lawyer for this, and it should be one you can trust and who has experience in this field.

Perhaps contact the Swedish Embassy in Warsaw who will certainly have a list of reliable lawyers.