One of the basic rules of writing is to write only about things you know. I don't imagine this writer has ever been to the Eastern Shore of Maryland. I grew up there and I can tell you it is nothing like the description in these books. Maryland is split by the Chesapeake Bay; the Eastern Shore and Delaware are on a peninsula between the bay and the ocean. The bit of Maryland that borders the ocean is taken up mostly by the huge resort city of Ocean City. There are no quaint little villages with old mansions and so on facing the ocean. The peninsula is sandy, No rocks! The long island of Assateague is all owned by governments. The setting here would have been much more compatible with Massachusettes or Maine.
I had to laugh, furthermore, at all those workers arriving right on time on Mon. morning, and working faithfully until the jobs are done. Evidently she has never had any construction done on a house. I don't usually read simple romance, but the setting intrigued me :-( I did enjoy the story.