.- Stay Persistent: As you mentioned, not every deal will work out. keep learning from each experience.- Balance Learning and Doing: While it's great to learn, make sure you're also taking action.

I manage around 400 rentals with 14 years of experience and have never been sued once.

Congrats = probably not perfect but getting a profit out of the first investment property experience is generally a huge win

How has your CapEx and turnover been in your experience with 12 units?

Just speaking from experience after close to a decade in the Rio Grande valley.

It's helpful to work with a mortgage broker that has experience working with DSCR loans and ideally specializes in working with investors.

There are small local banks that will offer loan products for such properties, you would have to call around and see (small banks with about 5-10 branches often work best in my experience). 

From my experience, garage door issues can range from simple fixes to total headaches.

Which ones have you used, and which would you recommend based on your experience?

I agree with you that this may not be common practice in different markets, my experience with HOAs is only in the state of NJ.