Thank you for your response.
If she is on your property and she refuses to discuss this with you, then you need to file suit against her for both the increase in taxes she caused you and to evict her from your land. If you do not pursue her to evict her from your land and leave her there it is possible if she remains on the land she could acquire ownership
through adverse possession
She is liable to you for both the increase in property tax and you can sue for reasonable rent for her using your land and seek to have her removed for trespassing and conversion over your land.
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