First: the landlord's boyfriend can take the golf coach exam through formal channels, but the coach's score is generally 80. So 85 is not easy to take the exam, so you need your friends to practice more. Professional coaches who pass the exam in this way are generally recognized by the stadium and guests, as well as by the state. You can check the website of China Senior High School Association online and ask about the registration first, because registration can only be done at the designated time of the year.
Second: the landlord can ask your boyfriend to apply for a job at the stadium where the coach is recruited. Some courses are not so strict with coaches, and you can do without a certificate, provided that your boyfriend has good skills in playing ball and communicating with guests. So the stadium will recruit people. General leaders let your boyfriend play some balls on the spot, but you can take a hole to see his skills. At the same time, the leader will also look at his communication skills. If they are all good, you can also apply.
Wish: Good luck!