Is it possible to get a letter of recommendation from the family business where the student was involved for a Master's?

Yes, you can get a letter of recommendation from a family business if you were involved there, but it should be written by someone in a professional role - such as a manager or supervisor - who can objectively describe your skills, work ethic, and achievements.

The letter must be formal, detailed, and focus on your relevant experience and suitability for the master's program. Personal references from family members without a clear professional capacity are generally not accepted. If your involvement was significant and the letter is presented professionally, it can strengthen your application.