W9 - Shared Cost of a new Fence

[Ryan ORiordan]

Hello,

I have a single family rental in California - I just recently replaced an aging 15 year fence. The neighboring house is also a rental controlled by a property management company. The property management company is requiring me to fill a W9 to split the costs of the new fence. Total cost for that particular side is $3k which means we'd split it - $1500 each. Is a W9 required in this situation?