I now work in a coporate setting and on a daily basis I cannot conceive how others can sit behind their computers for 8, 9 or 10 hours and not be utterly stricken in the soul of how this is not how we were meant to live our lives.

Is rental property investing in Phoenix(or surrounding areas) conceivable at the current prices?

So depending on what your accountant has for your starting basis it's entirely conceivable that you've got depreciation recapture over $110k. 

It's a mistake to conceive of OpEx as a % of anything.Things don't cost percentages.

Is it conceivable to have a 30 day turnaround)Any advice as far as doing this process?

It is conceivable that you get a hard money loan for 100% of the repairs but you can't refinance for as much as you already have into the property.Next, the property should cash flow enough to easily cover the payments on the new loan. 

If you are in one of those perfect locations where OpEx really can be sustained at $4,200, if you were to manage the thing yourself and back out $1,200 of payroll, then yes - you could conceivably run at $3,100.

Gross.Sounds like very poor conceived plan for how your system was designed............... 

Our results suggest that while institutional investors conceivably pursue opportunities in distressed real-estate markets, they also provide valuable liquidity which helps recover neighborhood home values.

From realtor.com:  "A landlord can raise the rent only when your lease expires and with the appropriate amount of notice (if you're month-to-month, the landlord could conceivably increase your rent at the end of any month).