Final answer:
Ingrid may face a fine or be required to evict her tenant due to the illegal secondary suite. Alternatively, she might attempt to start a legalization process, though approval is not certain.
Step-by-step explanation:
If Ingrid purchased an older property with an illegal secondary suite in a land-use district that did not permit them, and she rented out the suite which then led to a complaint from the neighbor, a possible outcome for this complaint could be a fine for Ingrid. Municipalities generally have bylaws and regulations about land use and unauthorized suites, and non-compliance can result in penalties. The local zoning authority may issue a fine or require Ingrid to evict her tenant and discontinue the use of the illegal suite. Another potential outcome might involve Ingrid starting a legalization process for the secondary suite, which could involve applying for rezoning or obtaining the necessary permits, however, this could be complex and there's no guarantee of approval. Approval is less likely due to the existing regulations against such suites in that district.