Does anyone have thoughts/advice on how to analyze a niche carpentry business with a highly skilled owner? The owner says that he has a number of FTEs and apprentices that are well on their way to becoming skilled enough to operate independently of the owner, but he says they have at least a couple more years before that happens.

the business specializes in a a very niche service that has little competition and more demand than they can currently keep up with. The lack of competition means that the talent pool for this service is also extremely small and each new employee must be trained for years.

Would you buy the biz with the stipulation that the owner must stay on until some of the other employees are fully trained?