Welcome mrjdmelendez to JWN. I'm glad that you are in a loving relationship, you have overcome great obstacles to get where you are now, and are free of the WTBTS.
You might ask your sister has she read Steve Hassan's books (i.e., "Combatting Cult Mind Control", "Releasing the Bonds: Empowering People to Think for Themselves", and (his latest) "Freedom of Mind: Helping Loved Ones Leave Controlling People, Cults and Beliefs"), visited Steve Hassan's website, or visted JWN? Steve Hassan's latest book might help your sister the most because of her relationship with her husband.
I live in Ventura County.
Peace be with you and everyone, who you love,
Robert