And it appears to be a straight forward rental dispute:
https://ottawa.ctvnews.ca/possible-evic ... -1.6032319
Summary - the group who are buying the church were renting it until the sale went through. Behind 10 K$ in rent and failure to obtain proof of insurance so out you go, standard commercial tenant lease, nothing complicated with eviction orders etc like a residential tenant.
Now the sovereign fun begins. Talk of a team of private prosecutors, something about a hate crime. Tortured logic here - occupation of their "embassy" rent free is allowed under Section 8 of the Ontario Human Rights Code (Duty to accommodate) because that is their creed. So...... I simply state paying my bills is against my religion and I get to stay there forever.