my former spouse needed to file as an individual for college...couldn't file joint even though it would have brought more cash in...so I asked for 100% of the interest and taxes for the house to be on my return in exchange for paying the entire return up to the amount I agreed to pay her attorney...I also got the house...

If you have income and you will benifit from these deductions than get them...if it is better for former spouse to have them you can work out an agreement to give him 100% in exchange for paying part of something...similar to what I did...