“That is very strange! While renters insurance is often mandatory (usually at the discretion of the property owner), I can think of no situation where it is prohibited, since the insurance would only extend to the renter’s personal property, liability, and additional living expenses if the apartment were to become uninhabitable.
You should reach out to your state’s Department of Insurance; I do not believe that they will discourage your grandfather from obtaining an insurance policy. The apartment manager would also not know if he has a policy, since he is not required to disclose this information to them.
This question raises some red flags; I suggest looking into the reputation of this apartment complex and checking your grandfather’s rental agreement.
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