How can I write a letter to a/my director asking [strike]for[/strike] him/her to write a letter of recommendation for my daughter's visa [STRIKE]approval[/STRIKE] application [STRIKE]for my daughter[/STRIKE] because my husband has lost his job?
Please see my corrections above. I think I have understood what you want. A director (someone in charge of a company) can't approve a visa application. Visa applications are considered by staff at a national embassy or consulate. I don't know what relevance you think your husband's employment status has.
In any case, we don't write letters for people. You need to try to write the letter yourself, post it in this section of the forum and then someone will look at it.