How many movies have Don Harrison and Tammy Gillis collaborated on?

They have worked on 4 movies together! Their first movie together was Signed, Sealed, Delivered: Truth Be Told (2015) while their highest rated movie together was Deadly Deed: A Fixer Upper Mystery (2018). They have not worked together since Deadly Deed: A Fixer Upper Mystery (2018). They are most known for their tv movie films together.