Some companies, especially smaller ones, just do not offer relocation expenses.
The hardest part of managing, to me, was delegating important tasks. It just drives me crazy to see people make avoidable mistakes; and you can warn them about pitfalls ahead, but some people, Bob love 'em, are just not bright enough to apply said warning.
Do periodic job reviews. It's a chore, but it needs to be done, and it really can be beneficial to everyone to go over expectations and results.
When you have to have a disciplinary/performance meeting with a team member, let them have their say (within reason). Allow plenty of time so they feel that they've had a fair hearing. Let them know clearly what's expected and how they failed to meet expectations, and offer support and advice on how to improve.
____________________________
In a time of universal deceit, telling the truth is a revolutionary act.