I have search a couple different ways and I don't see this apartment on the multiple listing service. The website that listed it on Trulia is HUBZU, a site I have never heard of. They have a customer care number (855) 882-1314. Maybe they can help you.
Your best bet would be to find a broker you like and work with him or her.
If you are looking to buy in Chicago, give me a call or email. I work with first time buyers all the time.
I always appreciate your referralsâ€¦