Land conversion is an important issue in Indonesia and Nigeria, with significant economic, social and environmental impacts. The problem-solving approach to uncovering farmers' legal culture is done through a sociolegal approach, where the law is seen not limited to the text but also its context in reality in society. With the sociolegal approach, the values, attitudes and views (NSP) of farmers towards their agricultural land, towards LP2B policies, and the behaviour of farmers in the use and utilization of their agricultural land designated as sustainable food agricultural land can be revealed and constructed appropriately and adequately. This research aims to uncover how farmers' legal culture can be better integrated in the law enforcement of food agricultural land protection, as well as find ways to harmonize formal laws with local practices in order to achieve more effective and equitable land protection, in addition to comparing factors affecting land conversion in both countries, including urbanization, infrastructure and industrial development, and government policies. The economic impacts of land conversion include economic growth and job creation, but also threaten food security and farmers' livelihoods. Social impacts include land conflicts and changes in people's lifestyles, while environmental impacts include deforestation, erosion and flooding. Proposed solutions include stronger monitoring and law enforcement, community participation, and sustainable policies and empowerment programs for farmers. In conclusion, wise policies and active participation from all parties are needed to sustainably manage land conversion in Indonesia and Nigeria.

Nazir as the party who received the mandate to receive and manage waqf land faced several problems related to waqf land. These problems are that the waqf land has not been certified, the waqf land is in dispute, the waqf land has been lost/controlled by another party. This problem occurs because the practice of waqf land is carried out verbally on the basis of mutual trust, the waqf pledge has not been made before PPAIW, the waqf pledge deed has not been processed, the waqf land has not been registered, and the waqf land has not been utilized according to the waqf pledge. Through community service activities, Nazir's capacity was increased through literacy in land waqf law. Legal literacy includes the land waqf process and waqf land registration. The legal act of donating land must be carried out according to the Waqf Law, carried out before an authorized official and the waqf land is registered at the Land Office. The waqf pledge must be made in front of the Waqf Pledge Deed Registrar to be recorded in the Waqf Pledge Deed. The Waqf Pledge Deed is written evidence in land registration at the Land Office, as the basis for issuing a Waqf Land Certificate. Waqf Land Certificates are issued to create legal certainty and legal protection for land waqf. The regulation of land waqf in the Waqf Law and its implementing regulations further confirms waqf as an important and useful institution for efforts to realize community welfare, in line with the goals of state life.