Can a home be taken away due to car repossession?

Long story short, my mother who owns a home was unaware that my father was going to lease a car. She thought it was going to be financed, not leased so she signed the documents with her name on top, the payments have been behind for about 2 months already. If the car is repossessed and she is sued can she lose her home? This is with Honda financial. What are some options?

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