Mail Campaign- Unknown property owner

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Hi,

I recently started wholesaling properties. I found a data base that provided the address, mortgage balance outstanding, and property type. However, they didn't provide the property owner's name (an extra fee is required so they can provide reports with property owner's name). 

My question is, Do you think it's possible to send mail to this property without knowing their names? I'm concerned if this would be as effective as knowing the name of the property owner. Any advice would be greatly appreciated.

Dan