ARV slows down deal analysis... right?

[Jason Howell]

I'm in the midst of @Brandon Turner's 90 day challenge where I have committed to analyzing at least one property every day for 90 days. So far, I've really learned a lot about the many facets of deal analysis and in particular, the components within the Bigger Pockets calculators that I can safely assume on... But ARV gets me every single time.

On one hand, I'm supposed to find a property to analyze, punch the numbers in and move on, learning what I can along the way. (per the challenge)

On the other hand, After Repair Value isn't something you can just guess on. In order to do it right, you either have to rope an agent into the mix (who has the means with which to do the CMA appropriately) or spend far more than the 15 minutes that I'm expected to spend on analyzing deals every morning.

I feel like at this stage, I'm analyzing deals and more or less guessing on ARV but that's a HUGELY important figure to get right, so my deal analysis is rather moot if I'm just guessing ARV...

Does anyone have any processes to share that make calculating ARV a bit more streamlined? What am I missing?