He is genius level at sales and does an excellent job explaining the science behind why he does things the way he does them. 

Guys,It's not rocket science.

She says that Computer Science and Medical Degrees are producing the best tenants.

Fascinating read... 

Screening tenants and then dealing with them after they move in is both part art and part science, and it’s a critical skill to learn if you plan on owning rental properties as part of your investment strategy.

No science behind this, just an observation I noticed. - Must have wear guarantee.

Finding out the requirements is very important, but rezoning is both an art and a science and it has much to do with ordinance build requirements, quality of the design, ultimate land use, local priorities of land use, adherence to existing design requirements and subtleties of the community leadership preferences.

Anyways with a multi zone mini split system you can eliminate the punctures in your "Envelope".I spray foamed our new home and shop and am a 100% believer in it -- there is just a few other building science things you have to take into account when doing this - but if you save for example $20k on your electric costs over a year at a 10% cap rate - you increased the value of your business by 200k. 

It's actuarial science. 

Your photography/videography experience and travels sound fascinating.