Find out who those agencies are and ask for help. Waiting out the storm may leave families devastated. Change is stress and support is its buffer. Relatives, friends, and professionals shelter families from the storms of change. It is much easier to deal with a colicky child when there is someone to talk to or take over.
Family therapy is much cheaper than paying divorce lawyers.
Reinforce The Foundations. In order for a home to withstand the winds of change, it will require a firm foundation. The foundation in the family is the parents. A weak foundation will crumble under the stress of change. A solid foundation will be keep a home intact, although shaken and showing some wear and tear.