Guided duck hunts are tough. The birds are so weather dependent that it is difficult to have consistant hunting. One of the places that seems to have very good duck hunting and get's lot's of good referals is Quaker Neck Gun Club. Look up Tyler Johnson at the Maryland Outfitters and Guides Association website. It is expensive, but the habitat is second to none. It costs a bit more but it is well worth it. There are many good guys for Canada Goose Hunting, I would call Bobby Burris at 302-528-1977. He has a few large Farms in Langford and a top notch Water Blind and he does very well. He is a very hard working guy. For Snow Geese, I would use Jerry Kucharski, Del Bay Guide Service. Hunts MD and DE, does about 100 parties a year. He is another hard working guy and very fun.
If you are interested in a hunting club with good properties and a nice group of guys: www.delmarwaterfowl.com
I run this club and it does not cost much more than a few guided hunts. The club furnishes all the decoys, equipment and there is lodging. Kids join for free and it is a safe ethical group that gets along very well.