[Good_Karma]

Hi Laura, and welcome! You and your husband have a lifestyle very similar to me and my husband. He works from home and I'm retired so our dogs always have us home with them. They are very happy, but there are drawbacks:
Separation anxiety - You should definitely practice leaving your dog for short periods just to make sure it doesn't develop.
Socialization - Might not be as critical if you get an older dog, but a puppy will NEED to get out. We did our best with our dogs and still have one very timid dog and one dog that is afraid of other dogs.

The best advice I can give you is to research Nothing In Life Is Free. We had no prior dog experience before we got our puppies, and we started right in with this and it has been a complete lifesaver.

Crates are not evil. What's your house? Just a really big crate, except it's filled with stuff that a dog can get into and hurt himself or destroy. Can't hurt to have one just to be sure your dog is safe when you are not home. People will disagree with me, but that's what works in my house with my dogs.

You might not need to train your dog to be protective, it's kind of in their nature and may come naturally. But a training class of some kind is a good idea, for bonding with your dog and learning how best to deal with problem behaviors.

It sounds like you are already aware of the areas you are going to need to work on, so good luck finding your perfect dog. And it's commendable that you are willing to go through a rescue. I'm sure you will be a great mommy!