Lack of HOA support for small condo complexes

I own a unit in a 12-unit condominium. For years we were self-managed. The difficulty with only 12 units/owners is that it has been difficult/impossible to find enough qualified members to serve on our 4-member board. As a consequence, we have resorted to hiring a property management company. There are very few property management companies that are willing to contract with small unit HOA's. Even the one that agreed to contract with us has not served us well as we are a small percentage of their business. Others who are willing to support us want excessive fees based on our small size. What can be done to help small unit complexes with this dilemma? We are unable to self-manage and cannot find or afford a property manager. I consider our HOA now not managed, thus no organization nor enforcement.