8 games a year unless one of your home games is moved to Europe or Mexico.

Look at Jersey

Jersey gives 2 NFL teams massive tax breaks but neither team wants to claim Jersey as its home

the NFL started removing home games from its stadiums and sending them to Europe & Mexico to be played

So instead of 8 guaranteed home-games it became 7

Now with 17 game schedules they can work out the guaranteed 8 home games without being sued.