Three Dogs...so many problems!!

Question
 I have three dogs here at my home, and seven people. My mother is on the verge of selling my dogs, because of their constant barking EVERYTHING! I don't want to have to sell my dogs, but I don't know how to stop the madness?
 Our first dog was a beagle named Sadie. We've had Sadie sense she was a puppy, and she's around six years old now. Her past as a puppy was horrible! Sadie was dumped, and found in a semi ally. She had no fur, and had many health problems. Now she's ok, and acting like a normal dog, but she's got the constant howling anytime my other two dogs bark.
 Our second dog is a German Shepard part Doberman named Harley. He's around five years old, and we've had him sense he was a little older than a little puppy. Harley is a very obediant dog for the most part, and very lovable. He loves to restle, affectionant, and protective. He's everything you could as for in a dog, except his barking. Our neighborhood is filled with dogs, and our back yard is fence to fence with other dogs. He runs up and down the fence barking and chasing the other dogs. He will not listen when we call him in, and to stop barking. My mother gets so irrated, and I want to help solve his barking problem.
 Our third dog is a Black Lab mixed with Retriever. Her name is Payton, and she's almost two years old now. We've had her sense she was a puppy, and raising her was harder than the other two. She's a VERY lovable dog, and is good with kids! She loves walks, playing in water, restling, and playing fetch. She's an amazing dog, but she barks more than the other two! She will bark at anything moving, and her attitude toward visitors in the house is unexceptable. Her hair sticks up, she growls, and will hide behinde Harley. Other than her barking she is a perfect house pet.
 My mother is pushing closer to selling all of them because of their constant barking. I don't know how to help them, but I don't want them gone. She has made them outside/garage dogs, because she can't handle the shedding. I'm concerned that their not getting enough attention, as to why their barking at everyone? I don't know, but if there is any advise you can give me to help I would SO appriciate it!

Answer
I don't know if I left this for somebody else if you would get a better answer or any at all.  I will do my best.  Having a good pack structure reduces such
problems.  The dogs see all the people and dogs in the household as a pack with each having their own rank in the pack and a top dog.  Life is much easier if the 2 legged pack members outrank the 4 legged ones.  You can learn to play the role of top dog by reading some books or going to a good obedience class.  A good obedience class or book is about you learning to be top dog, not the dog learning it gets a treat if it sits.  Start at http://www.dogsbestfriend.com/  For more on being top dog, see http://www.dogbreedinfo.com./topdogrules.htm

The above are fundamental techniques I suggest for almost all behavior problems and should help with barking too. The truth is, Labs usually don't bark that much and I don't have methods of controlling barking that I have been successful using. It isn't even in the manual for them. The manual does have a suggested reading list.  One I have read is The Other End of the Leash by Patrica McConnell.

She suggests the first step is not to yell at the dog. After all, usually if one dog starts to bark, any others around will to. So yell at your dog when it barks and it is happy to have you bark with it. Quietly tell it enough and walk over to it with a treat, doesn't need to be very big. Let him know you have it and use it to lure him away from what he is barking at if anything, and praise him as he shifts his attention to the treat and away from barking. Once away from where he was barking, give him the treat.

Unlike much of my other advice, this is not something I have tried and found works. It does come from a reliable source and I would trust it more than something I found on a website I know little about. I just hope she isn't smart enough to figure out if she barks, she gets a treat plus your attention.

Many times when a dog barks, it is barking for attention, from its owner, a stranger walking by, another dog, etc.  Other times it may be alerting its owner to something, a squirrel or a bird.  One reason my dogs bark very little is because I let them in at the first bark.  This is highly effective in many cases.  Perhaps your mother would let the dogs in if you controlled the shedding better.  Labs shed badly.  I have had good luck with a wire slicker brush.  This is a link to a picture of my one lab and the brush I use, http://www.photolocker.net/images/Labman/knitanewaster.jpg  Other people have had good luck with brushes that have large conical rubber teeth or sawblade like things.  Many people like the Furminator.  I found it slower than the slicker brush on the Labs, but it worked well on my son's Fox Hound that has a Beagle like coat.  

You might also look at the Dog Training category here.  There are 2 ladies that are giving good answers there.  Avoid the guy that down plays leadership.  

Finally, if nothing else works, try a private trainer.  Unfortunately, many of them aren't very good.