Insurance Issue - Policy Change After Closing

[Jesse Smith]

I recently closed on a 3-unit rental property.  During the due diligence and loan application period, I had an insurance policy set up.  This was a "Rental Dwelling Policy" for a 3-unit rental property.  Escrow has been set up for this policy, which costs $1,188/yr.

AFTER closing and having new tenants move in, my insurance agent called and said that underwriting had rejected the policy.  He said they require him to write an "apartment building policy," which will now cost $3,200/yr.  That's a huge difference!  

Do I have any options here?