A voluntary dismissal of eviction is when the landlord choses not to go through with the eviction process that was started. This can be for various reasons.
When the party who filed for the eviction typically your landlord, advises the court they wish to withdraw the petition for eviction, the petition can be dismissed by the court.
This is when the person who filed the petition for eviction decided not to have the order carried out and had the case legally dismissed with the court making it null and void.
