Can a revert Muslim marry without a wali?

A revert Muslim whose family is non-Muslim has no Muslim wali by default, and Islam fully accounts for this situation. The Prophet ﷺ established that the Muslim ruler or his representative becomes the wali of anyone who has no wali. In a Western context, this means the imam of a mosque or an Islamic center can act as her wali. A non-Muslim father, brother, or relative cannot act as wali in an Islamic nikah; guardianship in Islam is specifically a Muslim responsibility. For revert sisters in the UK, approaching a reputable mosque imam or Islamic organization to appoint a wali is the correct and widely practiced solution. Many mosques handle this regularly. A revert Muslim is never left without options. Islam closes no door on someone who has embraced the faith.