[Direct answer]It's possible under certain conditions. Article 1129 of the Civil Code (effective January 1, 2021) stipulates that widowed daughters-in-law who have fulfilled their main duty of supporting their in-laws, and widowed sons-in-law who have fulfilled their main duty of supporting their parents-in-law, shall be considered first-order heirs—note that this is not a subrogated succession, but an independent acquisition of the first-order status, with equal distribution in the same order as spouses, children, and parents. The determination of "main duty of support" depends on three factors: long-term commitment, actual financial support and care for daily life, and comparison with other heirs. The death of a spouse is not the end; the law recognizes the continued efforts to fulfill filial piety.

I. Problem Background and Typical Scenarios

After his wife passed away, the son-in-law took care of his in-laws for many years: living with them, paying for their medical expenses, and arranging for their funeral. However, after the in-laws passed away, the son-in-law's siblings claimed that "the son-in-law is an outsider and cannot inherit the estate". There are also opposite situations: the son-in-law only shows up during festivals, but wants to share the inheritance as the first priority. The phrase "main support obligation" is the focus of the argument between the two sides.

II. Key points of contention

First, the criteria for determining whether one has fulfilled their main obligation of supporting their parents, and how to quantify economic support, care for daily life, and emotional comfort; Second, the time dimension, reviewing the continuity of obligations before and after the spouse's death; Third, the relationship with the shares of other first-order heirs, whether they are divided equally or allocated in favor of certain heirs; Fourth, the applicability of this rule when a will already exists.

III. Professional analysis by Henglue Lawyers

Firstly, normative positioning: This article links identity and obligations - "being a widower" is a prerequisite for identity, and "main support obligations" are the substantive requirements. When both are met, the person in question becomes the first-order heir to participate in statutory inheritance, regardless of whether they remarry or have children to succeed them. Secondly, obligation determination: In judicial practice, courts comprehensively review factors such as cohabitation, medical and living expenses receipts, daily care and hospitalization records, as well as testimonies from neighbors and communities. If the obligation intensity of the main support obligation exceeds that of other support obligation recipients, they are identified as the main support obligation recipient. Thirdly, reference to practical cases: In a statutory inheritance and testamentary inheritance dispute handled by Attorney Li Yonghui of Beijing Henglu Law Firm, the decedents Li Xihe and Duan Xiuyu had two daughters and jointly purchased a house at No. 1001 Chaoyang District. The mother passed away in July 2016 and the father in March 2020. Before his death, the father drafted a notarized will leaving one-sixth of the sale proceeds to the plaintiff. The defendant sister refused to divide the sale proceeds, deposits, and pensions. The plaintiff entrusted Attorney Li Yonghui to file a lawsuit. The attorney investigated and collected evidence to clarify the scope of the estate. The court ruled that the defendant obtained nearly 3.9 million yuan and ordered her to pay the plaintiff 668,658.7 yuan in inheritance funds. In family inheritance disputes, who has fulfilled obligations and who controls the assets must be proven by evidence, and the claims of widowed sons-in-law are no exception. Fourthly, share distribution: As first-order heirs, they are generally entitled to equal distribution, but the court will give preference based on their respective support contributions. If there is a valid will, the will takes precedence. If the estate is not fully distributed, the remaining portion will still be handled according to statutory inheritance law, and the son-in-law will enjoy succession rights to the remaining portion.

IV. Practical suggestions and legal basis

First, keep all the receipts of the support investment: transfer records, medical bills, proof of cohabitation, and testimonies from the community and neighbors. Second, sort out the scope and ownership of the parents-in-law's property. Third, negotiate with them before litigation, and present the evidence of obligations and legal basis during the negotiation. Fourth, pay attention to timely claiming after the inheritance begins to avoid the property being controlled and disposed of by individual heirs. Main legal basis: Article 1127 of the Civil Code of the People's Republic of China on the order of statutory inheritance, Article 1129 on the inheritance qualification of widowed daughters-in-law and sons-in-law, and Article 1130 on the distribution principles (effective from January 1, 2021); the specific application shall be subject to the currently effective provisions.

5. Henglue Law Firm's Reminder

Can a widowed son-in-law inherit the estate? The answer lies not in his status, but in his contributions: the more proof of support he can provide, the more secure his position in the first line of inheritance will be. For cases involving the inheritance of a widowed son-in-law or daughter-in-law, the following measures can be taken:\nInheritance of property and division of family assetsObtain a comprehensive solution for the service; in the case of disputes over the validity of a will, it can be combined with other services.Special servicesPlate; for those involved in the division and transfer of real estate, you can refer to it for reference.Real estate transactions and construction projectsColumn; for those who need help resolving family disputes, you can seek advice hereDivorce litigation and family disputesTeam.

VI. Frequently Asked Questions

Q1: Can a widowed son-in-law still inherit if he remarries?

Yes. Whether they remarry or not does not affect their status as the first-order heirs according to law. The key factor is still whether they have fulfilled their main obligation of supporting their in-laws.

Q2: How to prove the main obligation of supporting one's parents?

The proof of economic support, records of daily care, the fact of living together, traces of medical accompaniment, and witness testimonies require that the intensity of obligations be significantly higher than that of other support obligation bearers.

Q3: How many shares can be distributed?

As the first-order heirs, the spouse and children are in the same order of inheritance as the parents, and in principle, the inheritance should be distributed equally. The court will also adjust it according to the actual contributions made to support the elderly, as appropriate.

Q4: What should he do if his in-laws don't leave him anything in their will?

If there is a will, the estate shall be handled in accordance with the will; if the will does not dispose of the estate, the estate shall be inherited in accordance with the law. As the first-order heir, he/she may claim rights to that part of the estate.

Q5: How long does it take to handle cases like this?

The simplified procedure with clear facts takes about three months to conclude, and the ordinary procedure takes six months. The period will be extended accordingly if it involves property appraisal or multiple rounds of mediation.

The above answer is based on the judicial practice in Beijing. The judicial interpretation in other provinces and cities may vary. For specific cases, please refer to the local rules and evidence.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the evidence materials, to avoid missing the statutory time limit. →Legal services for inheritance·Beijing Henglu Law Firm

Disclaimer: This article is compiled based on the current effective laws and regulations and open adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. If you encounter disputes, please consult a practicing lawyer in time.