How do I prevent my spouse from taking our child out of state?

She is the primary wage earner but some of it is under-the-table. Her spouse threatens to turn her in if she interferes with the spouse taking their child to another state. They are a same sex couple and the spouse never actually adopted the child who was gestated, born of and nurtured, primarily by my friend. The spouse has already disappeared and taken the child out of state twice (just left without any notice). She states that she is leaving with the child (9 year old female) within a week or by October to move. How can this be stopped? My friend is a very kind person and doesn't want to hurt anybody, but she was ready to act now that she sees her inaction will lead to something worse. But what does she need to do first? How can we find a lower-cost lawyer? The spouse has already maxed out the credit cards in spite.