CW - that's a though situation with the taxes owing on the property and the looming foreclosure. Even if you pay your half and he doesn't pay his, you may loose the property. Unless you are just thinking to let him sweat a bit and then you pay for it if he can't come up with the money.
I wonder if your lawyer can advise you on how to protect that money if you have to pay for his half. I'm not sure if you can put a lien on the property against him. That means that if the property is sold in the future you would recover it. Not sure if that's possible if you own the property jointly. Ask your lawyer.
M53 H54 D17 M33Y T38Y Bomb OW 09/09 OUT 10/09 BACK 11/09 OUT 01/10 WANTS TO R 04/10 BACK with OW 05/10 Wants to Reconcile 05/11 I said NO