Indeed there are other ways like the short term rental loophole.

If you are taking advantage of the STR loophole then working with a tax professional that understands it is  critical.

Have you heard of the STR tax "loophole"?

If you can qualify for the short term rental loophole or real estate professional, you can use depreciation via cost segregation to wipe out a large portion of your tax bill.

Plug it all into BNBCalc and share it so others can give you feedback- look at the tax savings via the "short-term loophole" at the bottom and learn how that functions as well as it can be a huge aspect of your investment.

I am very curious at the STR loophole for tax purposes.

You should put the property under an LLC Your third question is referring to the short term rental loophole, which requires 100 hours and more then anyone else of "material participation".

Indeed you can do this, as long as your stays are 7 days or less in that year, and you can qualify for the STR rental loophole in that year to get the bonus depreciation against your w2 income 

I have seen local CPA's claim they can help offset high W2's with short term rentals here in LA. Since LA has banned STR for more than 90 or 120 days, requires one to live in the property for 9 months or so and ADU's ...

From there, you can figure out if additional benefits can be achieved via real estate professional status or the short term rental loophole for instance.