I'm working primarily in the NOVA area with an emphasis in Prince William County.

Emphasis on occasionally because it's quite depressing to see what's become of that area. 

The emphasis is always on tracking the keys, which ultimately only tells you who to blame when the key is no longer available or is incorrect.

The sales approach need to be justified with current market properties and sold comps with more emphasis on sold comps.

Having said that, the reality is that these guys get trained to sell products that makes them a commission hence the emphasis on stock market and insurance products.

the general theme/theory is that suburban sprawl destroys inner cities so these developers of interest have a heavy emphasis on mixed use property development to restore old cities...

Owner occupied valuation emphasis will then be to market.Now, let's change the purpose of the appraisal.

I don't believe jobs/careers are going to be the same in a few years due to technology and more emphasis on younger workers piecing together a life with contract type work (uber, self driving trucks, AI advances).  

Emphasis on the word "deal"...don't just buy to buy or you'll be in trouble again.

The doubled standard deduction could swallow your property taxes anyway, with or without the $10k limit.Second, regardless of the above, I would not be placing that much emphasis on deducting property taxes while evaluating home ownership.