Citibank Mortgage Complaint

Citibank Mortgage department,

Conventional fixed mortgage Application, originator, mortgage broker New Jersey

I purchased a home in -/-/- with my then husband. We separated and divorced in -/-/-. Our divorce was finalized and ex-husband remained in marital home. He was to refinance taking my name off mortgage, He did not do so. He subsequently remarried and has since completed - remodifications with his now wife. They continue to remain in the house nd are currently in their - round of foreclosure notices. I was served a foreclosure notice ... ..he is now letting the home go and has no intention of making any payments. I have never signed a remodification agreement and papers indicate I inadvertently '' did n't sign. There is an amount of approx $490000.00 showing on my credit report preventing me from ever moving forward at - yrs old. How and what can I do to resolve this situation. Any assistance will be appreciated. Thank you for any assistance.