Welcome back to the Wefugees Community and thanks for reaching out to us!
Unfortunately, I don’t know lawyers in Rheine myself. But I am sure, that a migration counseling office, which is located in or close to your city can recommend someone.
I made some research and found, for example, a Caritas Office in Rheine, a refugee counseling by the Diakonie in Lengerich and another support office in Ibbenbüren.
In Münster, you will find the GGUA. Their experts are really experienced and have an excellent reputation.
Please follow the links for contact details.
You do not need to worry, their services are confidential and free of charge.
I hope this helps and all the best for you and your family.