Please looking for help writing a sql statement. I have a table with the following columns

Seller Name
Buyer Name
Buyer Address
Buyer City
Buyer State
Buyer Zip
Sale Date
Unit Number
Complex Name

The table contains all of the past and present owners of condos in different complexes. How can I write a statement which pulls out all of the present owners (Buyer Name, Buyer Address, etc) for a particular complex. I appreciate anyones help.