For the areas of interest (you are local so I'll say suburbs west of City Line Avenue) there are few and far between -and- have many investors sitting on large sums of cash to jump on anything that comes up (where I would be navigating a reverse 1031.) 

Start with BiggerPockets Ultimate Beginners Guide (free).

Multiply that by 10 total rental buildings, and you can see the premium jump significantly for your overall portfolio ($3k in this scenario). 

I recommend starting with more turnkey properties since they are generally easier to manage.

One thing that’s jumping out to me is how your House 3 has some serious potential once you carve out that above-garage apartment.

Did you have to jump through so many hoops and provide this level of personal information?

I've been with RentRedi for a few years (started with them roughly mid 2021) after I'd had my fill of Apartments.com.

It’s great that you’re taking the time to weigh your options before jumping in.

I jumped into real estate doing the BRRRR method, understanding that holding property will allow me to build generational wealth, but then learning that landlord income is not the best way to feed your family.

And someone jumping into this as a complete newbie can expect that they have a decent chance of making some expensive newbie mistakes.