There are a few different ways to go about finding a co-op, but one of the most straightforward avenues is to search the National Association of Housing Cooperatives' online database. Regardless of where you decide to apply, expect the process to be rigorous. Co-op members get a say in who is allowed to buy in and who isn't. This results in an overall higher caliber of owner, but it may mean that the co-op rejects your application.