First of all, kudos to you for all the hard work and dedication to lose all that weight. If the agent you are speaking about closed on the property with your brother-in-law then you could possibly find her name that way. The agent's name would stick in our database as the agent that sold that property. Best of luck on that search. I would be more than happy to assist you. Please feel free to contact me at anytime.
RE/MAX Advanced REALTORS