- First, you have to make first an administrative appeal in front of the Commission de Recours contre les Refus de Visa. Send them a registered letter (no need for lawyer).
- Second, don't wait for their answer ( !!! Yes, it is like that ! ) but only for the receipt from the post office that they received your appeal.
With this receipt (which shows that you respected the procedure), go immediatly to the court (Tribunal Administratif de Nantes, no need of a lawyer but it is better to have one as you don't know the prodedure ).
Ask a référé (trial in urgency) because of the marriage. The Court will have two months maximum to judge the case of your soon mother-in-law.
Be prepared that even with the judge saying that the French Consulate must deliver a visa, the French Consulate still doesn't deliver the visa ( !!! Yes, it is like that ! ) so ask the judge to have 100 euros per each day that the consulate refuses to deliver the visa while the judge asked it to be delivered.
Ask also damages claim. Yhis is the only way to be sure to be judged and the Consulate condemned if the Consulate, learning that you started to register to the Court, suddenly decides to deliver the visa and writes to the judge asking him not to organise the audience anymore.
If you read French, go there :
http://www.letelegramme.com/ig/generale ... 999058.php
and
http://brest.letelegramme.com/local/fin ... 000179.php
It was this week-end : French-Senegalese marriage with a forbidden mother still in Senegal. The couple went to justice to ask a visa. The judge said the Consulate must deliver the visa. The consulate still refuses to deliver the visa. Marriage without the mother.