In the common law countries (English speaking countries), moral right of authorship is not part of the protected copyright. US copyright law provides that a work can be made for hire, https://www.copyright.gov/circs/circ09.pdf There is no express copyright law about protecting whose name is listed as author.
This issue is rather an ethics issue. In your daughter's situation it is ethical to have the both founder and your daugher listed as authors, because the founder probably had the original idea and final editing to your dautgher's article. I think if your daughter asks nicely, saying she need authorship for future resume, maybe the founder will add her name to the article.
我女儿为Consulting services for medical school admissions. 写了一篇文章介绍怎么样提高机会进医学院。公司给了她$350。因为我想读她写的文章，发现作者是公司的Founder. 女儿说无所谓，但我想这是否不合法。
Authorship is a "moral right", https://en.wikipedia.org/wiki/Moral_rights It is a civil law concept, which means recognized in European countries.
In the common law countries (English speaking countries), moral right of authorship is not part of the protected copyright. US copyright law provides that a work can be made for hire, https://www.copyright.gov/circs/circ09.pdf There is no express copyright law about protecting whose name is listed as author.
This issue is rather an ethics issue. In your daughter's situation it is ethical to have the both founder and your daugher listed as authors, because the founder probably had the original idea and final editing to your dautgher's article. I think if your daughter asks nicely, saying she need authorship for future resume, maybe the founder will add her name to the article.
大学毕业生申请医学院很有帮助。公司是申请医学院的咨询公司。我只是觉得公司不尊重作者，当然公司给了钱。
也就是公司的，孩子可能就是帮着归纳总结一下。
最近看Thomas Sowell (https://en.wikipedia.org/wiki/Thomas_Sowell)的书，才知道有些书虽然以他名义出的，但有团队帮他做研究总结什么的。当然，他acknowledge这些人的贡献。
https://fairuse.stanford.edu/overview/faqs/copyright-ownership/#:~:text=If%20the%20creator%20has%20sold,person%20becomes%20the%20copyright%20owner.
这篇文章署名无所谓，但是下次你女儿的论文署名就有学问了。借此机会让她自己去学习一下署名的行规也好。这个问题和版权牵扯比较少，因为毕竟人家付了钱。