If you're not there to be found this will definitely cause a decrease in response rates...as many top investors are finding over the last couple years. 

Found it on Zillow and noticed it had a price decrease only 2 weeks after being listed, so I made an aggressive offer which the seller countered still in my favor.

In tight fiscal years, the number of new hires will decrease and the agencies will not pay for as much advanced training either.

I would talk to your CPA first.I have bought at year end to decrease my liability and or increase my passive loss from year to year..

Office TI work/build-out will only increase or decrease the cap rate if it is directly responsible for increased or decreased income.

Older people have decrease circulation, they start to always feel cold as they age.

Dead equity will decrease your potential income as opposed to increasing it.

VRs can also increase long term rent as "affordable housing" properties decrease. 

I certainly understand your mindset, however I would go with the 2nd rental property rather than paying off the mortgage right away.You might initially have less cash flow, but rental income should increase while your mortgage payment should only be decreasing (assuming you don't have an adjustable rate mortgage).I also like the idea of having more than 1 rental property because, if each property is cash flowing like they should be, you have more of a financial cushion during periods in which one property is vacant.

If you just had a really busy month and then the work drops off, you're then looking at terminating someone's employment or at least decreasing their hours.