What is the rental return on a two-family in Dewees Island?

Two-family properties are uncommon on Dewees Island, where the conservancy structure and boat-only access shape what gets built and how it can be used far more than in a typical mainland market. Any rental return calculation would need to account for those access costs alongside the usual insurance and carrying cost factors. Brian Beatty can confirm what property types actually exist on Dewees Island before running numbers on a rental scenario that may not apply there.