Fractional ownership makes homeownership more affordable. But there are challenges in a fractional ownership real estate transaction (FORET) regarding governance, risk management and compliance (GRC) processes. Centralized GRC solutions are less effective in managing the tiered structure of communications in a FORET, which can lead to principal-agent problems such as information asymmetry, risk aversion, and moral hazard. In this research we investigate how these principal-agent problems in FORET could be mitigated. Using an agency theory perspective, we adopt a design science multimethodological research approach. We propose conceptual and system artefacts to support the design and implementation of a decentralized autonomous agent system. These artefacts deliver a formal problem representation structure related to centralized GRC in fractional ownership. We illustrate our solution with a system prototype and implementation. We evaluate the research outputs and compare them with existing GRC systems. This paper contributes to the understanding of GRC in supporting fractional ownership decision making.