Right to own property 

The right to own property is enshrined in Article 17 of the Universal Declaration of Human Rights.

In cases of violations of this human right (explained here),

Migrants may turn to:

Special Rapporteur on the human rights of migrants

Indigenous people may turn to:

Special Rapporteur on the situation of human rights and fundamental freedoms of indigenous people

Persons being in an African country may turn to:

African Commission or Court on Human Rights and Peoples’ Rights