Perusing the Bellingham Herald I found:

Waypoint books custom charters to explore waterways around the world — including the Pacific Northwest, Alaska, Mexico, the Caribbean, the Mediterranean and the canals of Europe. An independent charter broker representing thousands of luxury vessels worldwide, Waypoint has begun brokering handicapped-accessible charters in part due to company owner Sherri Backstrom’s own physical challenges.A lifelong sailor and yachting enthusiast who has been diagnosed with a neurological disease, Backstrom started her company with the mission of helping people of all ability levels travel the world’s waterways.
To learn more about Waypoint Charter’s broker services for yacht and sailboat vacations, go to www.waypointcharter.com or call the Waypoint office at 656-5934.

For the whole article see:
http://www.bellinghamherald.com/business/story/298127.html
Those who read "below the fold" here are likely to have a serious and ongoing interest in the success of the demographic of travelers with disabilities. For you I offer this excerpt from Waypoint on the value-add of working with a broker:
Why Use a Broker?You're eager to start planning your charter dream vacation. But is it really necessary to use the services of a charter broker? The answer is yes-for several important reasons:
1. We have first hand knowledge. An independent charter broker, Waypoint Charter Services represents many different power yachts and sailboats including a variety of catamarans, monohulls and multihulls. Our reputation depends on recommending only the best vessels to our clients, so we get to know each and every operation personally. With this kind of firsthand knowledge, we are able to recommend only the packages that are a good match for you.
2. We have the skills to assess your charter vacation needs. As a broker with over a decade of experience in the charter industry, we'll ask questions designed to ensure you have a clear picture of your dream yacht or sailboat vacation-and the kind of charter package that will make it a reality.
3. We offer comprehensive services. If you have questions or concerns about your charter package, we will address them right away. With our team working for you, you can forego the hassle of contacting a busy vessel owner or crew. Instead we handle everything, allowing you to prepare for your trip.
4. Our services cost you absolutely nothing. Waypoint's services are complimentary-you never pay additional costs or hidden fees. Compensated by the charter operations we represent, we are paid to focus on your needs and best interests before, during and after your vacation.
Remember, with Waypoint Charter Services you pay no additional costs or hidden fees, ever.
http://waypointcharter.com/accessible_travel.htm
Posted by rollingrains at January 25, 2008 04:02 PM