Was named as a defendant in a foreclosure summons in the event I have interest in the property. I have no interest and need to respond. Would appreciate sample letter to reply certified mail.

How did your name get involved in this?

Depending on the circumstances - similar name, you don't know, whatever it is - I would "simply" send a letter to that effect.

"Dear so and so, I do not now nor have I ever had an interest in X."