I cannot fault your choice in schools...been there done it myself.... But there is a slight reality in what Larry H says.... For each of your rental units, when occupied, the renters pay all of the taxes. On your books they are a cost of business that comes out of your profit. On the other hand if the units are empty, then you are paying the taxes yourself....
As a liveaboard...who spent a number of years in a marina surrounded by condo's with those critters called HOA's....and they used to say that we didn't pay any taxes, etc... It was fun explaining economics to them... The marina owner, while the slips are full...is merely the person who takes the boaters money and passes it to the tax authorities... and we boaters, in particular the liveaboards paid more than the homeowners did in HOA fees and taxes!