The only reason my team is able to get anything is because we've designed a fairly intricate system and can afford to buy in volume and spread the risk over more properties.  

The world of real estate is so intricate with so many rules, exceptions and various paths that can be taken.  

The internal makeup of an LLC can be very intricate, so you may want to search the forums on how to start an LLC to give yourself a sense of how LLC's work and why they are important.Just my 2 centsGood Luck

Obviously there are a lot more intricate details but thats the high level view.

Do intricate research and invest your time in getting to know them beyond just knowing that they are people who need a place to live and on the surface seem to be able to pay. 2.

I love all the old Chicago brick buildings with all the intricate facades. 

This is one of the most intricate and no "black and white" answer areas of tax- make sure your CPA is up on strategy for REI so that you don't lose out. 

It came from a class I took and it’s intricate to use.

Construction is an extremely complex and intricate industry.  

Providing, of course, that you are familiar with Pittsburgh's intricate neighborhoods, that often change street by street, that you run numbers on all properties you consider, and define your goals.