However, if the 18-year-old is endangering the family, the parents have options beyond eviction:
* Calling the Police: If the 18-year-old is engaging in illegal activities, threatening violence, or causing actual harm, the parents should call the police. The police can intervene and potentially arrest the individual or issue a trespass order.
* Seeking a Protective Order: If the 18-year-old poses a credible threat of physical harm or domestic violence, the parents can petition the court for a protective order. This legal order would prohibit the 18-year-old from coming near the family's home.
* Filing an Unlawful Detainer Action (Eviction): While a typical eviction process focuses on tenants, an unlawful detainer action *might* be possible if the 18-year-old is considered a "tenant at will" (meaning they have no formal lease agreement but have permission to reside there). However, the success of this route depends heavily on the specific circumstances and the judge's interpretation of the situation. Simply being 18 and endangering the family is unlikely to automatically win this case.
* Working with Social Services: If the 18-year-old has substance abuse problems or other issues contributing to the dangerous behavior, social services might be able to offer assistance and resources.
In short, while Indiana parents can't simply kick out an 18-year-old child, they can utilize legal channels to protect themselves and their family from dangerous behavior. They should consult with an attorney to determine the best course of action given their specific circumstances. Attempting to evict an adult child without proper legal recourse could lead to further complications.