Final answer:
If the zoning of her street has changed to a commercial zone, it is likely that her residential use of the property may no longer be legal. It would be advisable for the person to consult with a lawyer who specializes in zoning and land-use law to fully assess their situation and explore any available options.
Step-by-step explanation:
In this case, the person who is using her property for residential purposes may face a legal issue due to the change in zoning regulations. Zoning regulations are rules put in place by municipalities to control and direct the use of property within their boundaries. If the zoning of her street has changed to a commercial zone, it is likely that her residential use of the property may no longer be legal.
However, it is important to consider the specific laws and regulations of the municipality in question as well as any potential exceptions or variances that may exist. It would be advisable for the person to consult with a lawyer who specializes in zoning and land-use law to fully assess their situation and explore any available options.