how can i keep my home if i owe property tax

you will not loose your home unless, and until, someone forecloses on the tax lien.  When you can't pay your taxes, its goes to tax sale.  that means that someone can "buy" a lien against your property by paying your taxes.  then, after waiting two years, that person has the right to foreclose on that lien and force you to pay and if you can't they can force the sale of your house, and then get paid.  the same person can also pay subsequent taxes on your house and get more liens, but cannot do anything with it until they foreclose on it, and you will get a lot of notice before that happens.