How to write a sensational thank-you letter to the owner who paid the property fee?

You'd better consider sincerity. Sensitization itself is not good, giving people a very false feeling. It is natural that the property company provides services and the owners pay the corresponding fees.

I don't think I need to write anything at all. Just work harder in the future. However, those who dare not pay the property fee need to be recovered severely, but this is to write something in the main part to recover.

Let them not expect anything.