One of the major problems with hiring your spouse into your practice may not be you or your spouse, but your existing staff. How are your employees supposed to respond if your spouse does substandard work, allows important tasks to fall between the cracks, or acts as if the office rules don't apply to them? If it were a new employee, your existing employees would tell you about it, so you could fix it. With your spouse, they probably won't tell you. How's that going to affect morale?