Andrew is a machine when it comes to analyzing, and even he shares your frustration with analyzing.

Why does the deal machine app not work?

I once got a deal under contract, and found it had foundation issues (we had a foundation machine on hand).

They are such givers, you'll be impressed by how much detail they share on succeeding as an investor.Another prolific investor who is highly regarded and is a content machine is Zach Kepes.

We have a water pump for a pair washing machines and a dehumidifier in the basement.

Your best bet would be to link up with a REALTOR® who does some MF deals.

It's a 5-unit that we bought 6 months ago for $299,000, put $50,000 into it (new floors, countertops, painted cabinets, new hardware, painted exterior, bought coin-op laundry machines), increased the rents dramatically, added pets fees, and now we plan to pull all of our money back out so we can rinse and repeat.   

Then what you're talking about is extremely, extremely expensive teardowns, with the so-called "missing middle" being put there to maximize the economic return, which means that you will have extremely expensive rent/buy condos/townhomes/2-3-4-plexs.California suffers from the perfect storm of stupid policies, bad street planning (that's actually getting worse), some real actual natural constraints to building, and receiving a massive local inflation hit from not only the Fed's money printing machine but also from overseas investors who also have monopoly money looking either a place to dump some cash or somewhere to have an anchor baby.

I had my realtor® Rebecca Hutton find it and negotiate it.

I'm a Realtor® locally here too and really get a lot out of BP.