Question of the day:
«Alexis, my father, owned buildings in France, a consulting firm in Germany, and accounts in Singapore. Today, my brothers and I no longer speak to each other, the tax authorities are demanding penalties, and the notary seems overwhelmed by the joint ownership. How can we get out of this impasse without destroying everything?»
A complex succession It's not just a matter of figures or large sums. It's a crossroads where civil law, international taxation, corporate governance structures, and, above all, the human element intersect. In these moments of vulnerability, the wealth management The traditional approach is no longer sufficient. It must give way to true precision engineering.
At the house of Balmont Conseil, we made some complex successions our core business. To meet these challenges, I combine my expertise in'Wealth Engineer to the power of a AI CGP super trained. This synergy allows us to model thousands of scenarios, analyze cross-laws and propose liquidation or anticipation solutions that the human mind alone would take months to conceive.
What is a complex succession?
An inheritance is defined as "complex" when it presents legal, tax, or relational obstacles that prevent a smooth and amicable settlement. Unlike a "simple" inheritance (bank accounts and a primary residence in France), complexity often arises from four factors:

The major causes of deadlock and joint ownership
The blocking of an inheritance is rarely a matter of chance. For the assets of a business owner or professional, it often results from a rigid estate planning structure or insufficient estate planning in the face of a growing number of potential conflicts.
Joint ownership of inherited property: The forced "status quo"
Joint ownership is the situation where several heirs hold rights of the same nature to the same property, without their respective shares being physically divided. This is often the starting point of family crises.
- The rule of unanimity: For acts of disposal (selling a building, transferring company shares), the agreement of all co-owners is mandatory. A single refusal is enough to paralyze the entire strategy.
- Day-to-day management has become more complex: Even administrative acts require a two-thirds majority of undivided rights, which can block the maintenance of a property or the renewal of a commercial lease.
- The right to leave: ""No one can be forced to remain in joint ownership." If an heir demands their share, they can initiate a judicial sale (often at a very low price) if the disagreement prevents an amicable division.
The disputed assessment: The trigger for the conflict
The liquidation strategy always begins with indisputable expertise, because an approximate valuation is a major risk on two fronts:
- The risk of tax reassessment: A clear undervaluation of assets (often to reduce transfer taxes) systematically attracts the attention of the administration, with heavy late payment penalties and default interest.
- The feeling of unfairness: If an heir receives an asset that is overvalued compared to its actual market value, they are disadvantaged during the division of the estate. Conversely, an undervalued asset unfairly benefits the recipient.
- The need for a contradictory expert assessment: For complex assets (unlisted companies, atypical real estate), using an independent expert is the only guarantee to defuse suspicions between co-heirs.
The impasse regarding inheritance liquidity
This is the paradox of "asset-rich, cash-poor." One's assets can be immense (real estate, business equipment) but lack immediately available liquidity.
- The immediate tax burden: Inheritance tax must be paid within 6 months of the death. If the tax rate reaches 45 %, and the estate consists solely of illiquid real estate, the heir is in dire straits.
- Forced sale in an emergency: To pay the tax authorities, heirs are often forced to sell a key asset under unfavorable market conditions, thus selling off part of the inheritance at a bargain price to settle the tax debt.
- The cost of maintenance: Without cash to pay condominium fees, property taxes or insurance, the property deteriorates rapidly, resulting in a loss of value for all beneficiaries.
The role of professionals: An ecosystem of skills

Tools and Levers for Anticipation and Resolution
The best way to manage a complex estate is to prevent it from becoming complex in the first place. However, if death has already occurred, there are ways to resolve the situation.
How to unblock a stalled inheritance? The key steps
If you are already facing a deadlock situation, here is the Balmont Conseil methodology:
- Audit and Comprehensive Inventory: Identify all assets, including those abroad, and stabilize the'property valuation.
- Inheritance Mediation: Before going to court, we prioritize the inheritance mediation. Reconciling the family relationships by a distribution of inheritances objective and explained.
- Analysis of Financing Capacity: Calculate the inheritance liquid assets necessary to pay the duties without selling off the assets.
- Use of Specific Mandates: Implementation of a posthumous mandate or a judicial mandate to manage the joint ownership in the event of a total deadlock.
- Simplification of Procedures: Centralizing communication with the notary and the administration to speed up the liquidation strategies.
The Balmont Conseil Advantage AI at the service of your legacy
Why entrust a complex succession At Balmont Conseil? Because wealth management engineering has entered a new era.
Mathematical precision against tax risks
Thanks to our AI specializing in wealth management engineering, We don't just "think" the setup is good. We simulate the impact of inheritance rights over 15 years, taking into account inflation and returns on real estate and likely developments in the tax planning.
Tax Mentoring and Wealth Management Strategies
We offer you a genuine tax mentoring. We explain each one to you. specific testamentary clause, each option of'tax optimization and each risk of legal recourse. Our goal is to give you back control over your own estate.
Assisted management of jointly owned property
Our technology allows us to model exit scenarios from'undivided inheritance Highly personalized solutions: share buybacks, split sales, contributions to holding companies. We transform an emotional problem into a solvable financial equation.
Deadlines and obligations: Don't be caught off guard
The management of an estate is governed by strict legal deadlines. A delay can result in penalties of 0.4% per month, or even a surcharge of 10% after 12 months.
The tax calendar: The relentless 6-month deadline
The tax authorities don't wait for family conflicts to subside or for real estate to be sold. The obligations are clear:
- 6 months: This is the deadline for filing the inheritance tax return and, most importantly, pay the full amount of the fees (for a death that occurred in metropolitan France).
- 12 months: This period is extended to one year if the death took place outside of France, taking into account the complexity of searching for assets internationally.
- The cost of waiting: Any delay will incur late payment interest of 0.20 % per month (current rates), plus an additional charge of 10 % from the 7th month following the death (if a formal notice has remained without effect).
The right of option: A strategic decision within 4 months
From the moment the estate is opened, the heirs have a limited time to choose their legal position:
- The reflection period: During the 4 months Following the death, no one can force an heir to choose.
- Exercising the option: After this period, creditors or co-heirs may formally demand that the heir make a decision. If there is no response within two months of this formal demand, the heir is deemed to have accepted purely and simply the estate, including any potential debts.
- The importance of inventory: In a complex inheritance, these 4 months should be used to carry out an accurate inventory in order to decide whether to accept up to the net asset value, thus protecting one's personal assets from the debts of the deceased.
Why are these timeframes critical in a complex succession?
For assets consisting of company shares (SELARL, holding company), jointly owned real estate, or assets abroad, the 6-month period is extremely short because it requires:
- Valuation of unlisted assets: Obtaining financial statements and conducting certified real estate appraisals takes time.
- The release of funds: Banks freeze accounts immediately upon death. If the estate is primarily comprised of real estate, accessing the necessary funds to pay inheritance taxes before the sixth month is often a logistical challenge.
- Coordination of stakeholders: Between the notary, the accountant, the bankers and the insurers, the centralization of information is the primary factor causing delays.
Our role at Balmont Conseil: We act as a conductor to accelerate information gathering and anticipate tax returns. We also support you in implementing solutions for deferred or installment payment with the administration to preserve your cash flow.
FAQ Your questions about complex inheritances
Preserve your assets, protect your family
A complex succession is not inevitable, it is an engineering challenge. Whether you are in the phase of tax planning To avoid future pitfalls or in the midst of a difficult liquidation, Balmont Conseil offers you the best of human and technological expertise.
Our goal is simple: to transform a moment of crisis into a inheritance successful, where the'tax optimization serves fairness, and where technology guarantees the sustainability of your legacy.
Don't let complexity destroy what you have built.

Alexis Sagnier
With over 17 years of expertise in financial engineering, Alexis Sagnier assists executives and expatriates in securing their cross-border challenges.
Sources & References:
CGI (inheritance tax)
BOFiP ENR-DMTG
Civil Code (articles 720 et seq.)
Article 815 (joint ownership)