Sell them to the local shops (Craterside Supplies, The Restaurant, Moriarty's Saloon, etc.).
If a particular house is locked or you need a key to get into a safe or something of that nature, just kill the owner of the property, and get the key from his or her body.
Note: If you capture all four slaves and tell each one to "Deal with it", and then talk to the man after the initial time, he will give you another 250 Caps for each one.
This makes it much easier to get large amounts of Caps instead of running back and forth with just one.
In the "Strictly Business" quest, capture Susan Lancaster, and get your reward for her capture.
Afterwards, speak with her in the slave quarters part of Paradise Falls.
Note: This trick requires you take the "evil" path. Burke nuke Megaton, go into every single house and steal everything (any little piece of junk you can carry).Selecting these "duds" will remove one of the words that is wrong from your choices.Also, it may grant you an additional attempt if you have already gotten a selection wrong.Following its release, Fallout 3 has received very positive responses from critics who praised in particular the game's open-ended gameplay and flexible character-levelling system.The NPD Group estimated that Fallout 3 sold over 610,000 units during its initial month of release in October 2008, outselling Bethesda Softworks' previous game, The Elder Scrolls IV: Oblivion, which sold nearly 500,000 units in its first month.