That depends on the nature of the original agreement. More details are needed. But, if this was a signed agreement with no stated end date there is no reason to believe it isn't, at least not from what you have written so far.
That depends on the nature of the original agreement. More details are needed. But, if this was a signed agreement with no stated end date there is no reason to believe it isn't, at least not from what you have written so far.