[7] Eventually, the Bettencourts settled in an Art Moderne mansion built in 1951 on rue de Delabordère in Neuilly-sur-Seine, France.

[21] Bettencourt had an art collection that was said to include Matisse, Picasso, Fernand Léger, Derain, Soutine, Mondrian and Ruhlmann furniture.

[28] In December 2009, the court delayed ruling on the case until April 2010 (later extended until July 2010) pending the results of a medical examination of Bettencourt's mental state.

[31] In July 2010, the trial was adjourned again until autumn 2010, at the earliest, after details of tape recordings made by Bettencourt's butler, Pascal Bonnefoy, became public.

The tapes, which were turned over to police, consisted of over 21 hours of conversation and were made because the butler had feared that Bettencourt was suffering from Alzheimer's disease and was being duped.

[34] The spat reignited over the following summer, however, when Bettencourt said her daughter needed to seek psychological help,[35] which renewed their estrangement.

[35] On 8 June 2011, it was reported daughter Meyers had filed an application with the court to make Bettencourt a ward of the state for her health and being incapable of the management of her fortune.

[36] On 17 October 2011, a French judge ruled that she was to be placed under the guardianship of members of her family on concerns about Bettencourt's declining mental health.

"[35] As of 2014, Francoise Bettencourt-Meyers is guardian of the fortune,[37] while Francoise's son, L’Oréal Board member and member of the supervisory board of the Bettencourt family holding company, Tethys, Jean-Victor Meyers oversees her health and personal life after a judge determined he was the only person able to "ward off all conflict between Liliane Bettencourt and Françoise Bettencourt-Meyers.

She was the first investor in a fund managed by Access International Advisors, which was co-founded by René-Thierry Magon de la Villehuchet.

De la Villehuchet died by suicide on 22 December 2008, after it became known that his funds had invested a substantial amount of their capital with Madoff.

She alleged that Woerth, while acting as treasurer for the Union for a Popular Movement (UMP), was given an envelope containing €150,000 in cash in March 2007 towards the presidential campaign of Nicolas Sarkozy.

She also made, then retracted, a claim that Sarkozy was a frequent visitor to the Bettencourt's home while he was mayor of Neuilly-sur-Seine from 1983 to 2002 and received envelopes containing cash.

[39][42][43] Following these allegations, French police raided the home and office of de Maistre, who heads Clymène, the company owned by Bettencourt to manage her wealth.