Removing Name from a Co-owned Property

[Jeremy Kuchenbecker]

I co-own a duplex with my dad. Its a property we have owned for 2 years with a 30 year conventional loan. Is there a precedence for being able to remove a name from a loan, or does anyone know of how to do this? I haven't gotten very far with the lender, but most of the people I speak to there do not sound like they know what they are doing. 

Thanks in advance!