The next morning, a representative from the gas company arrived at 8am. After a thorough investigation, he concluded the leak was in the pipes and, though valiant, the effort of the [hot] firefighter was unproductive. He turned off the gas for the entire property and handed me a literal red flag to share with the landlord. Using his technical gas company man terms, he told me this is pretty damn bad, and I could take this landlord to court if I wanted. He also informed me that the washer and dryer shared between the four separate residences are all run on my utility bill. Great, keep the good news coming, Bryan.