I came away with the perception that one should be prepared to have up to 40% available for down and closing.

This is a common, yet sophisticated, estate planning technique.What exactly are you hoping to achieve?

If the assumption is that the increased minority population is being fueled by those in lower socio-economic groups (I don't have data to support this off-hand, but it's the common perception), then think the answer to your question will be highly dependent on the social changes (if any) that occur over the next 20 years or so.

Sophisticated and experienced investors analyze opportunities very carefully.

or anyone here can explain them to me Hey Rod,I write a blog for Bigger Pockets a while back about my perception on the different types of asset classes.Please see link - http://www.biggerpockets.com/renewsblog/2014/06/28/abcs-real-estate-asset-classes/Thanks and I hope you find it useful.

It is literally true that two $10 fees have a greater negative impact on peoples' perceptions than a single $25 fee.Personally, I have never raised the rent of an existing tenant.  

Most of our products perform pro-forma analyses that range from basic to quite sophisticated.

My day job is in the Information Technology Analyst and I just recently got my real estate license and looking to transition into this field in the next few years full time.My question to you is in regards of perception.

Our job is to try and change perceptions for the industry.

Again, Philly vs Burbs is very subjective and a lot of what goes into the perception has little to do the actual cost of living in Philly versus the Burbs.