Welcome to the Wefugees Community and thank you for reaching out to us.
It is not easy to give a tailored answer on a quite complex issue without knowing too many details. However, we discussed the topic of independent residence permits for Ex-spouses of EU-citizens before on this platform. Please see, for instance, this thread for more information. Since you already hired a lawyer, it is always the best option to address your specific questions to him/her also. He/she will know your individual situation better.
In any case, please also don't hesitate to get back to us if you want to discuss your situation more.
All the best,