Where can I stream Gloria’s Law: The Devil’s Advocate?
It streams in 1 other country, but not in the United States.
Not streaming in United States. Where it is:

GoodWatch score 71
GoodWatch score 67
GoodWatch score 68
GoodWatch score 69
GoodWatch score 69
GoodWatch score 60
GoodWatch score 67
GoodWatch score 69Quick answers from GoodWatch data.
It streams in 1 other country, but not in the United States.
Mostly, it's well received, with a GoodWatch score of 69 (IMDb 7.4).
Yes: it's movie 5 of 8 in its series, after La Loi de Julien, Le bon fils (2017) and before La Loi de Valérie, tous coupables (2018).
No, it was made in French.