Except, for properties with an ARV greater than about $350k, I can show that the rehabber will earn a profit between about 12% to 15% of the ARV using 75% instead of 70%.

I'd overestimate what it will cost and the amount of time I think the project will be by at least a month to give yourself some cushioning and an idea of the margin of error you have in order to earn money.

Every market is a bit different, but sticking to what you would be desiring as a guest is more certain to hit than going based strictly off value.I find it ironic how vast the differences are between STR and LTR. 

Waiting does not earn money, time is a valuable commodity.

no,,just become a bird dog, learn, earn and save, then go on your own 

Areas I think would do well are those where people are moving back to or highly desired - Arcadia, Scottsdale, Tempe, Gilbert, parts of PHX, and Chandler / Mesa. 

Myth: Getting your license means you will start to get business and sell homes and earn commissionFact: Selling homes, lead funneling, closing deals, handling clients is hard work and you must bust you A** to find clients. 

We completed our first fix and flip with cash and earned a 78% ROI.

For example, some neighborhoods have much larger percentage of owners than investors, in which case SFH may be more desirable.

The trouble I am having is there is no comps to look at in the immediate area, so I just took some comps that were miles away up further north, and subtracted a little bit since the area was located near more desirable restaurants and shopping.