Then I got thin with money for a few years because I was using up all my savings to buy more and more houses.

Hey Ed - this one wouldn't qualify with DSCR if one of the houses is your primary (assuming all are on the same tax parcel).

One of them came down this street and tore off the roof of my neighbor's house right across the street Not sure about the apartments mentioned though...

I believe in SLC, they are still requiring the owner to live in the main house (meaning you don't have to be there, but you can't rent it) for you to use the ADU for anything else.

I'm on my 3rd house doing just this, and it's been great.

Investors already learned this lesson about 15 years ago with housing.  

We had to evict one and the second didn't pay rent for a year.I switched over to GK Houses which is now Evernest and compared to Zeker, the experience has been quite positive so far.

Tearing down any rooms that are a little wonky before the appraisal.For example, I bought a HUGE (3300 sqft) 3 bed house.

This shock factor often leads them to question what other elements of the house may need updating, even if the paint is a relatively easy fix.

House hacking can also be a solid way to offset expenses early on.It sounds like you're diving in with a great mindset and skill set—being handy and managing yourself puts you ahead of the game.