Moi, Biwott and Kulei in battle for billions
In what sources familiar with the intrigue say could be a wider scheme to reclaim property previously held in trust by associates of Mr Moi and Mr Biwott, there are fears the dispute could end up in court and partly expose the extent of the wealth of the two individuals.
However, it is not clear why the two men have chosen to engage in legal battles at this moment in time.
People close to their families say perhaps those who stand to inherit would like the property to revert to the principals from the nominees who were entrusted with it.
Sources familiar with the ongoing battle by Mr Moi and Mr Biwott say that there may be other assets in dispute ranging from buildings and shares in companies to land.
Mr Moi, who is celebrating his 90th birthday on Tuesday, governed Kenya for 24 years and is said to be one of the wealthiest individuals in the country with business interests straddling the financial sector, media, real estate and farming.
The Kroll report commissioned by the Narc administration in 2003 alleged he owned some of his property in partnership with Mr Joshua Kulei and Mr Biwott among others.