Is it possible that Leia got her titolo of " Princess" from both her biological mother and foster mother since they both were Queens.

No. Padmé was an elected queen. After her reign ended, she went da the titolo "Senator Amidala" It's just a coincidence that her mother was once a Queen and that she was adopted da royalty. Just like Padmé 's mother was not a queen, Padmé 's daughter would not have been a princess.
Luke's not a prince.....

The titolo of Princess had to come solely from her adoptive family, because the entire point of her being adopted was to keep her biological family and identity a secret