You can typically figure the monthly PMI by multiplying the final loan amount by .85 and then divide by 12 (i.e. $200,000 * .85 = $1,700 / 12 = $141.66/month).Hope that helps.

Any advice for an alternate strategy that can multiply properties quicker?

Kids get older, expenses increase, and the drama in your life will multiply X fold if you can't provide for your family.

A lot of the Facebook groups that I'm in, have Buyers mainly searching for the cheap, boarded up (or burned up) properties to multiply their rental portfolio's. 

Just like sellers and listing agents might assume an FHA buyer has a rock bottom FICO, they might also assume they are barely scraping together 3.5% down, since many do in fact multiply target sales price by 3.5% and save up exactly that much money, unaware of closing costs, that things break in homes after you buy them, etc.

In my experience as a fix and flip broker and a rehabber, you should take the square footage and multiply by at least $60.00 per square foot in order to estimate the cost of rehab.

I take that final monthly number and I multiply it by 12 and then I divided by 52 so that I can have a weekly amount of what I need to hit.  Right now my families weekly core budget amount is $525.

We have calculated what we need to retire on and multiplied that by 2, this is our "WHY" & our goal.

Multiplex has lots of responsibilities to manage multiple tenants and other related issues which are multiplied as well.

You're looking at $400-$850 k for that multifamily in the south end, or $700-$1,200k for one in the north end, so you can do that math by multiplying that by 3.5% plus some extra for closing costs.