When traveling to Spain and applying for a group visa, is there a high rejection rate?

Haha, 90% is no problem. Because 1, you go with your mother. 2. You have a real estate certificate. 3. You have entry and exit records from valuable countries. Spain also has a Schengen visa, and you have already been to Germany, a member of the Schengen Agreement. The only weakness is that she is unmarried.

You may also be asked to return to your country for an interview to cancel your visa. I wish you a happy journey!