Hi Emily, Shah here.
I am the senior designer for the team C One Point and here our main objective is to achieve client satisfaction above anything else, my clientele has also assured me on that I have achieved that goal by providing positive feedback on each work.
Feel free to check their feedback here https://www.freelancer.com/u/Conepoint
All our logo work is vector based, thus the source files are the ai,png and jpg along with psd,eps,pdf and others if required. And the designs are symmetric so the aesthetics just perfect.
I have understood your idea with the mail box under a house with a stick figure dog, and would be deigning an exiting logo for you as per that description, we can also work on changes lateron til you are completely happy with the final design.
Feel free to drop me a message for discussions.