You have a young family with multiple kids. 

Once you have a shortlist, sign up for an account with each one and test them extensively to see how they function.

Some BRRRR Nuances:Rehab Budget: Ensure that bids are received from multiple contractors and that adequate reserves are made for cost overruns.

Ive also knocked on the door on multiple occasions.

Another bus will be coming along later.It's possible there was some sort of fluke with the communication, but since you contacted multiple ways it seems less likely.

Multiple offers are now the rare exception, not the norm.

Be careful on if you do, get multiple bids and vet the GC well. 

That's a spreadsheet that doesn't transfer to a real life leasing scenario because its not permitted within the zoning code.If the property is zoned RM1, then  perhaps you can lease to 8 unrelated individuals by converting the building into multiple units.

Self Sufficiency test is the important item for 3-4 unit FHA homes. 

However, there is a nice marketing aspect to "only pay for what you use" because if there are heavy utility users in a building, it essentially gets subsidized by all residents over time.I'm lining up some meters for testing and will report back on any findings.