What sort of lawyer do i need to seek out if i need to bring suit against a seller of a home?

You need an attorney versed in RE law. Be prepared to explain how you failed to get a home inspection and a current Title V certificate. The latter...

Failure to clean up per ordinance is a basis for a complaint to animal control; failure to provide proof of rabies vaccination is another. You may...

This is a landlord/tenant matter - moving accordingly. Does your lease have a pet clause? If so, what does it say? That document...

What are my rights on this issue?

1. You don't "get a prescription" for a service animal. 2. If your lease forbids your pet, you are in violation of the lease.

1. This has absolutely nothing to do with animal law. 2. You state nothing which indicates any damages on your part, or error on the store's.

My dog is trained to walk off leash. We were walking home on our deadend street cul de sac on the sidewalk.

Defense against WHAT? If your town has a leash law, does it require a physical restraint, or is "under the owner's control" sufficient?

You need to move immediately to vacate the default judgment, based upon lack of service. You may wish to retain counsel for this.

This is a landlord/tenant issue - moving accordingly. As you admitted, it was an "open postcard."

Can i get in trouble?

The thing to do was to call animal control about the dog being left outside, and its general physical condition.

Looks as if you need a divorce attorney to deal with this, and all the other issues divorce entails. Moving accordingly.