Assualt is one claim that a personal injury attorney could address. The more interesting claim may be against the company who sent this home health aid.
Speak with an attorney who can rule out or discover any potential claims.
A lawyer would need more details but you MIGHT have a case against both the worker and the worker's employer, and even claims on your father's homeowner's policy. See a lawyer ASAP and share those details.
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You certainly should see an attorney right away. While proving that you were assaulted without provocation could be a problem (the old "he said/she said" problem) it is definitely worth your while to consult an attorney and see about bringing a claim.
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