@Karl KauperI have had clients do 1031's and I have helped a client with a reverse 1031.

If electing S Corp status, pay yourself a reasonable salary to avoid IRS scrutiny.To be honest with you, you don't need any kind of Corp for tax savings unless you reach a certain amount of net income.

It all goes to s***.

I found a CPA to set up an llc and s-corp for me.

Put a lien on the property(s) they own, this is needed by some court action (i.e. lawsuit in civil/criminal court) 

Good job 4's are the way to go! 

Here is a video that runs down the basics - https://s-media.nyc.gov/agencies/specialenforcement/01-Legal...There is also a prohibited building list - https://www.nyc.gov/site/specialenforcement/registration-law...Here are some more info overall - https://www.nyc.gov/site/specialenforcement/registration-law..All of this makes STRs in the city pretty tough but it certainly not impossible.

The last event was a vape stuck in the s-trap of the toilet that required toilet to be replaced.

Your LLC has no "business" other than the asset(s) it owns.

You can sell your property into an S corp take advantages of the gain and then depreciate it all.