Welcome to the area. I working in center city 16th & Market and live in North Wilmington (Delaware). Must be a shock to the system moving from the midwest. I have a shore house in Pierces's Point New Jersey which is on the De Bay about ten miles north od Cape May. I gre up hunting the marshes down there, Green, Dias and Biwell Creeks as well as the Maurice River. Sporatic teal hunting and good black ducks. The areas behind the costal communities Wildwood, SH Avalond, Sea Isle, OC, AC and all the way up to the BB can be good (mostly late in the season) and can get sporty. You will want to go west into Chester, Lancaster Counties to get good goose hunting. Plan on knocking on alot of doors, but there are still some opportunities to get permission assuming you act like a gentlemen. If you expect to get exclusive permission plan to pay for some type of lease. Never offer right away. Same in NJ in areas lime Glouchester and Salem Counties after you dodge the new subdivisions.
I stopped hunting this area and began hunting southern DE and the Eastern Shore of MD. The hutning pressure is a bit more and leasing is much more common, but there are lot's more birds in the area. The variety is much better. There are a few spots in my club for the upcoming year
www.delmarwaterfowl.com and we have really good dove hunting which you don't see in PA and not legal in NJ.
Don't forget snow goose hunting!!! About 3/4 of the AF's population of greaters will stay withing a two hour ride.