Tankless may cost more upfront and could require higher electrical capacity, but for occasional single-sink use in multi-tenant industrial units, it’s likely the more efficient choice.

For what you’re trying to do, you’re right to be cautious with condos since Atlanta HOAs can kill a future rental plan fast, so most long-term investors I work with end up choosing single-family or small multifamily homes for the flexibility.

Quote from @Michael Plaks: Quote from @Wayne Wollesen: I have a single STR and will need to get a cost segregation study (specifically an engineering study) done for this year.

I currently own one single-family rental and I’m actively looking to grow my portfolio with more long-term single-family rentals in the region.

I do think Multifamily certainly has advantages over single family, but single family has advantages as well.

All it says is the property is for single-family use.

That hurts and is hard for an individual small single family owner to compete with.Most of the new apartment construction is ending now and as soon as those get leased up, I expect we'll be in better shape for rent increases maybe into the spring and summer.I'm suggesting to all my rental owners to do everything they can to keep the current tenants happy. 

Where STRs are allowed / zoningSTRs are permitted in single‐family dwelling units within single‐family residential districts or designated single‐family residential areas, with a permit. 

And the highest tier is a detached single family unit, that has no walls, floors or ceilings that adjoin another unit.

As the first project, I would suggest a small single-family or multifamily property that requires small to medium renovation, and hold it as a rental or flip it on the market.