On this new topic, it sounds like you're not able to afford a diversified portfolio without taking on debt.

I have linked an article below that goes over how they tie into BRRRRs.

Since the properties are in New York you have a few extra steps you need to do to keep all of your funds out of NYs hands at closing.Here's an interesting BP thread on the South Carolina property tax issue you mentioned. https://www.biggerpockets.com/forums/725/topics/604427-south.... 

I'll include a BP article below that highlihgts the gist of them in alignment with BRRRRs.Also, I lived in NC for a bit, so happy to connect and introduce you to some folks in the area. https://www.biggerpockets.com/blog/brrrr-loans-what-are-the-...

Interesting as there were a couple of posts a year ago after the widely distributed article in the media essentially calling it a STR crash.

This article walks through the steps in a cost segregation study.WHAT INFORMATION DO I NEED TO PROVIDE IN A COST SEGREGATION STUDY?

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

I have not spoken to a CPA yet and am just scratching the surface on this topic.

This article was published Aug 22nd... 

This topic is literally discussed every day and you can glean a lot from other's comments.