thank you for your question and we are sorry we could not get back to you sooner.
In regards of the case you are outlining:
With the refugee status in general:
"Family members of persons entitled to protection also receive asylum.
The following are regarded as family members for the purposes of family asylum:
- spouses and registered partners,
- minor, unmarried children,
- the parents of minor, unmarried persons for the purpose of care and custody,
- other adults who have personal custody of minor, unmarried persons,
- the minor, unmarried siblings of minors.
A precondition applying to spouses is for a valid marriage to have already existed in the country of origin, for the asylum application to have been filed prior to or at the same time as that of the person entitled to protection, and at the latest promptly after entry into the country, and for the entitlement to protection not to have been revoked.
This arrangement applies to persons entitled to protection to whom refugee protection or entitlement to asylum has been granted or who have received subsidiary protection. Persons are ruled out with regard to whom a national ban on deportation was found to exist during the asylum procedure."
#000000">In the specific case in Mainz I found the consultation office of caritas, there the person affected can get first free advice and a recommendation for a good lawyer in Mainz:
#000000">0 61 31 908 32 67
#000000">0 61 31 908 32 42
In general it is possible to be successful with the application even if the person, such as in your example is 18 years old and not a minor anymore. The application for the visa for his mother has to be argued for very well.
I hope we could assist you with your question, if you have any further question we happy to help.