Law / Polish citizenship by petition to the president of Poland? [66]

Hey!
I found this thread and it seems that you are very well informed about polish citizenship.

My great grandfather was born in 1897 around Zamość.
When he was 14 years old, he immigrated to Brazil with his parents and siblings(in 1911). I have his parents' birth and marriage records. They all came from Zamość area.

In 1926 g-grandfather married in Brazil.
In 1937 my grandfather was born in Brazil. He acquired brazilian citizenship because of jus soli.
In 1963 my father was born. Married my mother in 1987.

The ancestors(both g-grandfather and gg-grandfather) never naturalized as brazilian citizens nor served brazilian army.
I have Birth/Baptism/Marriage certificates from 'Polish' ancestors.

I don't have a document to prove ties to Poland in 1918 or afterwards.

Some lawyers told me I don't have right to the citizenship, others said otherwise.

I was told that if I am able to prove that family members stood in Poland in 1918 or after, I can be eligible.
I'm sure GG-grandfather siblings didn't leave Poland.

Any thoughts?