In a few years, if I do decide to leave the United States and work in another country, how would my Roth IRA and High Yield Savings account be affected? 

I do however, have full availability on my HELOC, various credit cards that are offering me 0% balance transfer checks for up to 12 months, and various retirement funds (Roth IRA, traditional 401k, etc.)I'm already a homeowner in SoCal, but I want to buy my first LTR SFR someplace like Cleveland since the price point is attractive.

Additionally, you might want to look into local real estate meetings.

We charge $45-50/night for the RV pad up to 4 people, $5 per person per night extra for additional guests.

IMO, only worth it if you have access to enough capital to scale your efforts, though.Can't be compared.To do well in the lending game, in addition to controlling your risk and what others have mentioned, you need... 

There are even 2 gigantic "crawlspace" areas in the house that could be developed into additional ADUs.  

It's been my experience that the additional reward doesn't outweigh the additional work.

@Madelyn Felix we used to use ShowingHero, but moved on from them to ShowMojo, due to ShowMojo offering keypads in addition to lockboxes.We've pretty much flipped to keypads as too many keys go missing from lockboxes or get locked inside the home.While ShowMojo offers a service for tenants to use their keypads after movein, we remove the keypads when a home is rented and transfer to next vacant property.PRO TIP: only use keyed deadbolts for occupied rentals! 

Additionally I spent $35,000 on property taxes, $17,000 on insurance, $35,000 maintenance and repairs.  

In addition to medical professionals, we also have college/grad students.