How many movies have Martha Williamson and Yan-Kay Crystal Lowe collaborated on?

They have worked on 13 movies together! Their first movie together was Signed, Sealed, Delivered (2013) while their highest rated movie together was Signed, Sealed, Delivered: Lost Without You (2016). They have not worked together since Signed, Sealed, Delivered: The Vows We Have Made (2021). They are most known for their tv movie films together.