Neighbor's tree fell on my property: chaos- what to do?

[Ericka G.]

Due to hurricane Irma a large tree fell from my neighbor's property and was leaning scarily against one of our rental's trees. I had my tree guy come out to assess but didn't cut anything because the tree was/is on my neighbor's property and not mine to cut. I contacted the neighbor and he contacted his landlord with a promise to resolve on Saturday. But they did nothing. Tonight my tenant calls in a panic - tree has come down barely missing the house but taking down the power line and ripping it from the side of the house. Power was still on but power company came out and shut it off for safety reasons (live wire near gas line, etc). I was told that I need to get the tree removed and the electrical box repaired before they will turn the power back on. My question is this: what responsibility does my neighbor have here? if I pay to get THEIR tree removed from my property and pay for repairs, do I have legal grounds to ask them to reimburse me or is it better to wait until they agree to help pay before doing anything? I don't want to leave my tenants without power so I have my tree guy ready to go Monday morning but it doesn't seem fair that I alone have to deal with the damage from their tree. Any advice? Have you experienced anything similar?