You really need to talk to an immigration attorney. Much ... much ... much more information and details are needed.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.
Generally, there is no prohibition against filing for DACA and adjustment of status, but filing DACA when teh adjustment is pending may not be necessary.
Please note that this posting does not constitute legal advice or create any attorney-client relationship with the inquirer. Avvo is a useful forum to obtain general information on legal issues, but is not a substitute for direct, confidential consultation with an attorney in any legal matter.
If a person is eligible for DACA, they can file for DACA and get a work permit.
The above is intended only as general information, and does not constitute legal advice. You must speak with an attorney to discuss your individual case.
The father's petition will not keep the son applying for DACA work extension. There is no processing difference between biological parent and adopted parent. The son is not in deportation risk.