When you select your property you should pick it more based on its appeal as a destination rather than your personal opinion. 

He was able to appeal my taxes down 5k/yr on my 6 unit. 

@Arron Paulino The ultimate risk, though very unlikely, is that some owner/interested party was never Properly notified of the tax sale and if they make a successful appeal/challenge to the tax sale, they simply have to pay the original taxes owed plus some interest and fees to redeem the property and the Current owner, whoever that may be, is out anything above that amount that they paid for the property. 

Once I have more time to contribute, flipping sounds appealing. 

Ended up putting up 587 feet of fence to appeal to pet owners.

This property seemed very appealing to me, because I knew I could handle all of the work that had to be done to the property as well as I knew I could get the funding for it and make it cash flow.

This property seemed very appealing to me, because I knew I could handle all of the work that had to be done to the property as well as I knew I could get the funding for it and make it cash flow.

It's likely that things are hidden behind the walls as well since an inspection is visual in nature only.

Ton of NYC are getting prop tax appeals ready and you may be on the wrong side.

If you want to spend a little money, call a zoning consultant and ask them if they can study to see if he or she thinks the subdivision appeal will get approved.