The Federal Tax liens should be reported against a person with the same name, regardless of the address listed on the lien form because the lien applies to all real estate owned by the individual in the county in which it is filed.  The duration of a federal tax lien is 10 years and 30 days from the date of assessment, and that date is listed on the lien.  For Commonwealth of Pennsylvania liens it depends on what type lien it is and what it for.  Remember in PA, judgments don't necessarily apply to after acquired real estate, which is different than many other states.  There are different underwriting standards for sales vs. refinances for instance.  I would continue to list what you find, and let the title insurance examiner decide if clearing it makes it to the requirements or not.  Here is a chart our underwriters gave us to use:

 In Pennsylvania, judgments DO NOT attach to after-acquired property.
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Property acquired by the defendant after the date upon which judgment is indexed against the defendant.