@Tom Gimer  The concept of Amazon 15 years ago was unheard of .  

Slabs are unheard of its all pier and post.. builder grade finish's ..

Land Resource Investments leverages group purchasing power and their existing 401K funds to enabe the individual to own prime pre-development land – a practice virtually unheard of 10 years ago.

A labor who does not know anything but can follow instruction is asking 15/hr. 10-12/hr is unheard of, the lowest I paid for the last 3 years was 13/hr.

It’s not unheard of for listing agents to submit a bid in order to get you into a “multiple offer” situation and encourage you to raise your offer at least once or twice.

It's not unheard of for realtors working with wholesalers, but definitely not common.

With the Realtor, you can add the state board of real estate or the commission....his client is under contract and he is advising to breach the contract....unheard of!

As Jon Holdman said, I wouldn't say it's "common" - but it's not necessarily unheard of either.

.) - I've been on the market for 10 months now to buy and my 6th offer just finally got accepted today.I'm a first time homeowner / investor whose strategy is to buy and hold a cash flowing multifamily unit to owner occupy, but I'll be honest - the pickings in Austin are slim.The property under contract is a fourplex and breaks even with me occupying one unit which is pretty unheard of, but it's right by Chinatown up north by I-35 so the neighborhood is on the rougher side although not too bad that I'd be scared to live there.

It is also in the NYC metro area and positive cash flow is unheard of.