Partners dad constantly interfering!!

So
My partners dad won't stop interfering in my choices!! He has to constantly put his opinion in and undermined me! And my partner listens to him over me! I want my baby to be christened and he doesn't think we should! We are currently wanting to buy another home for ourselves as we don't live in a great area for schools and the house isn't brilliant. I grew up in the same area and went to the same school and I didn't enjoy it at all so it's my own right to want better for my child! But he thinks we should stay where we are as he doesn't think it's so bad!! It drives me mad!! My partner is his own child and protects him loads but there's no reason for him to be like this!! I know what's best for my own child and I'm sick of him trying to rule over us!!!
Sorry but I really needed to rant!