Construction Liens On a 30-Unit Multifamily

[William Coet]

I was talking with an owner of a thirty-unit multifamily property and he said he couldn't sell because there are construction liens on the property.  A search at the county clerk's office confirmed this.  The liens are 15 years old.  

Does anybody have experience with setlling these old liens in order to clear up title?

Thanks in advance for any suggestions.