How long must the passport be valid to cross? I have a passport that expires in seven months, could I cross without problems?

Go ahead, no problem, check your time within the US, so that you can make an appointment for the renewal!

Hello, your passport must be valid for the total duration of your trip, finally, the entry authorization is at the discretion of CBP.

No problem

Clear until the last day.

If it is in force if you can cross. If it expires in the US, go to the Mexican consulate.

The passport must be valid until the day you return, so you can enter without problems