Aggressive?

How do handle a little more protective dog when entering a home? I had my first walking appointment with 2 new dogs today and the large German Shepherd/Husky mix was very alarming when I tried to walk in. The owners told me they bark a lot and are very in your face as you walk in but are fine once they are outside. That part was true and once we were outside he was fine with me. But as I walked in he was trying to bite me, scratch me, and got my nose a little (i'm not very tall). Once I got them on leashes it was fine. I realize I am basically a stranger walking in their home as I have only met them once before the appointment. He was just protecting the house, I get that. But it does concern me and make me nervous.

I am a little nervous for the next time I walk them. How do I help the more protective one once I walk in the house? Is there a body language I need to convey to him or something like that? I'm sure it will be somewhat better next time as he is a little more aware of me now.

I would appreciate any advice or suggestions! Thank you!