I guess a little bit of tax is OK

, but you have to be very careful not to pay too much. Especially now when you have a child to support.
I will look up other English-speaking CPAs with international tax and accounting experience.
If you wish to contact a law firm that can help you with tax planning, I can recommend Castro, Barros, Gomes, Sobral - Advogados.
We´ve been using them a lot on a variety of issues. They have excellent tax attorneys.
The partner we usually speak with is:
José Augusto de Araujo Leal
Castro, Barros, Sobral, Gomes - Advogados
Praia de Botafogo, nº 228/15º andar - Ala "B"
22.250-040 - Rio de Janeiro - RJ
BRASIL
Tel.: 55 21 2132.1855 / 55 21 2132.1809
Fax: 55 21 2132.1856 / 1857 / 1858 / 1859
e-mail: jaleal@cbsg.com.br
Regards,
Boris