Complex sentence: In 1895, the New York Shakespeare Society purchased the Cottage for use as a headquarters with the promise that it would be maintained in the condition in which Poe used it, however concerns about any move of the cottage sprung up almost immediately.
Split into simpler sentences: In 1895, the New York Shakespeare Society purchased the Cottage for use as a headquarters with the promise that it would be maintained in the condition in which Poe used it. However, concerns about any move of the cottage sprung up almost immediately.