Can you have two homeowner's insurance policies at the same time?

Answer 1

By now you have cancelled the first policy and received a refund for the unused period. In answer to your question, had you experienced a claim during the period you had two companies, they would likely share the claim payout.

Answer 2

Sure, you can buy as many policies as you'd like, but you can only get paid once if you suffer a loss so you may be wasting money.