"Consideration" amount in Quit Claim Deed

[Joseph F.]

I got divorced last Summer and got a property as part of the divorce decree.  The title of the property is in both of our names.  The mortgage is only in my name.  I want to put the title in my name only.  I plan to use a Quit Claim Deed.  What "consideration" amount should I use?  Furthermore, the IRS has filed a lien against my ex and it follows the property.  I will need to have the IRS release the lien on the property.  Anyone have experience with this?  The IRS lien was filed after the divorce decree was filed.  Someone said to appeal to the IRS using the "innocent spouse rule".