In a time when democracy is under attack through a proliferation of military regimes, it is essential to resolve the legal problem of representation between the ECOWAS state as a legal entity and de facto regimes who acquire the capacity to act on behalf of the state. Using the principal-agent theory and case studies, this article will attempt to resolve problems with representation of a state by a de facto government. It will argue that de facto governments should not be seen as authentic agents of the state and cannot act on its behalf, especially in the context of multilateralism. This is because the sovereignty costs incurred under a multilateral obligation such as The ECOWAS Protocol on Democracy and Good Governance allow for state accountability towards democratic governance. The article concluded that there are great implications for the state as a legal entity when a de facto government is in power, however, that popular support of such a government can ratify its lack of legitimacy.