Is a female employee sinful for preparing social research reports for families wishing to adopt, given that she is compelled to do so by her manager and informs the families of the impermissibility of adoption in Islam?

Sponsoring orphans and children of unknown parentage is an act of righteousness and is permissible. As for adoption, meaning attributing a child to other than his or her biological parents, it is unanimously forbidden due to the legal harms that result from it, and it is not permissible to do it or assist in it.