>>1732492The pivotal variable here is your a relationship with her family, if they don't like you are already fucked so don't even bother.
Also, if you are a relatively economically stable person you will have the upper hand. Most of latinas don’t really look for falling in love but rather finding a husband to go away and fix their lives financially.
Also, be sure to be get adept at spanish, for extra points.
Other than that, just the usual. Be confident, dress nicely yadda yadda.
Good luck burger-bro.