Several years ago, I had a problem with these hotels...Courtyard in BTV, Airport Marriott GSO and Courtyard in OMA. All were Marriott properties.
In OMA, I showed the front desk clerk a picture of welts on the back of my leg (sometimes a cell phone camera picture is worth more than a thousand words!). I told him I didn't have those when I went to bed the previous night. His eyes just about popped out of his head.
In GSO, the staff told me "those are tree spiders, not bedbugs." I told them I didn't care what they were, I wanted another room. They relocated me into another room. The following day, I received a call from the hotel manager and he wanted more information and also told me the room was out of service until they got an exterminator in there. He handled it well while his staff didn't.