What would you estimate the additional labor hours to be annually for reading, processing, etc?  

My estimates were much higher.

What we're struggling to understand is how to underwrite/estimate the paper losses that a MF would produce and IF this strategy is worth it from an income/tax savings perspective.

And they can give you an estimate.

So even popular rent estimate tools seem a little inflated unless you're outpeforming the competition with what youre offering.

What's the estimated after repair value? 

Estimate potential rental income and factor in a vacancy rate.

I estimate that will take about 8-10 months to get where I want to be. 

Get a couple estimates materials and labor.

Often, states will provide child support calculators, which are a great starting tool for those strictly looking for an estimation; these calculators tend not to get into the nitty-gritty of finances, however, as they don’t factor in your specific circumstances.