Is it permissible for an architect to draw up plans for subdividing a plot of land to sell to citizens for a director of a governmental real estate agency who is rumored to take bribes, while offering him the opportunity to buy like everyone else?

There is no objection to undertaking the aforementioned plan. The fact that the manager accepts bribes does not prohibit all dealings with him, as long as the work and the contract are permissible and do not involve bribery. The Prophet, peace and blessings be upon him, dealt with the Jews despite their consumption of usury and unlawful earnings.