We were in St Martin in Feb and spoke to Lydia and she is still in business.
She managed to return deposits made for rentals after Irma and now is waiting for the properties to be repaired.
Also, some properties she handles are now being rented to local residents who are repairing their homes.
She commented that she probably would have a better idea of what properties are available for the fall and winter of 2018/19 for rent by Aug 2018.
Just keep in touch with her. She will respond when she knows more info.