I apologize, but I could not retrieve the content of the article "It’s a Dog’s $2.9 Million House. They’re Just Living in It." from The Wall Street Journal. My search capabilities did not yield the full text of the article, which is necessary to generate an accurate summary, tldr, or identify a free alternative.

Without access to the article's details, I cannot provide any specific information regarding dollar figures, percentages, names, or other relevant facts mentioned within the story. My function prevents me from making assumptions or generating content without direct access to the source material.

Therefore, I am unable to fulfill the request for a summary of this particular article.