My marriage wasn’t preceded by a police background check of my wife. Later, she filed a dowry harassment case (498A) and the court ordered maintenance. My father passed away last year without a will. Will my wife have any claim on the family property?

As per Indian law, your wife’s claim to your father’s property would depend on whether she can prove her marriage was valid and if she can establish a claim as a legal heir. The dowry harassment case and court-ordered maintenance are separate issues and don’t directly impact your father’s property inheritance.