Lee Suet Fern, 62, was given a 15-month suspension by one of the city-state’s top courts for her involvement in the will of which her husband, Lee Hsien Yang, and current Prime Minister Lee Hsien Loong are beneficiaries.

The will has been central to a long-running public feud between the siblings due to disagreements over what to do with their late father’s house: Demolish it, or let the government decide whether to make it a heritage landmark.

In its ruling the court noted the final will in which Lee Suet Fern was involved was “materially similiar” to a previous version and said she “did not act dishonestly” in her dealings with Lee Kuan Yew.

However, in reaching its judgment the court said there was a clear “potential conflict of interest” given the “divided loyalties” to her father-in-law and husband.

Lee Suet Fern said in a statement she disagreed with the decision and said neither her father-in-law nor any of his beneficiaries had made a complaint against her.