This is kind of a legal and ethical issue.
I recently found out that companies like Central Security Group and Brinks have clauses in their contracts that after the initial contract period automatically renew the contract for a year.
For example: You sign the contract for 3 years. Then when the 3 years is up, the contract is renewed for another year unless for a period of approximately 30 days prior to renewal the home owner notifies the company they wish to cancel.
This in my way of thinking is unethical. What happens if the person must leave the home or sell the home. How are they to necessarily know that on a specific date related to the contract date.
So for you legal eagles, what do you think?