Alright, well.
We recently got this Beautiful Doberman. She found us. She came into our yard late at night and just stayed there all night barking. At first, we were scared she might attack us if we tried to shoo her away so we Just waited. We gave her some water and sat outside( at the other end of the yard) Once she got the water she stopped barking. She came over to were we were sitting and sniffed us all. Eventually we decided to feed her, and she let us pet her. I personally bonded with this dog very well, and have grown to love her. She loves me, and wags her tail as hard as she can when she sees me. She seemed like the sweetest dog. She would lay in front of out sliding glass door and wouldn't budge till one of us (Me or my sister) went out to give her some attention.

Well anyway, my Grandfather was doing some pool work outside, and he tried to come in by stepping over the dog. He didn't give the dog any warning or anything. Well, when he tried to step over the dog she bit him. ( on his ankle)
Ever since she bit him, whenever she sees him she just barks viciously.

She was pretty good after that( My grandpa was usually out of site). But then y Father came over to visit. My mother thought it would be a better idea to take Tiny(The dog) into the side yard to meet my dad. I told her I didn't think this was a good idea because Tiny hasn't spent much time in the side yard, and she'd be scared.
Well She let my dad walk up to her and she sniffed his hand. She didn't bark or anything. But when my dad tried to sit down, he scraped the chair on the ground and the sound spooked the dog. She then bit my dad on his ankle. It wasn't as hard but it did break the skin slightly. Again, she never let my dad approach her again. She just barked viciously at my dad whenever she saw him.

Then when my Grandmother tried to give her a dog treat she bit her. (She liked my grandmother before this). My mother said it was because it looked like my grandma was going to hit me, but she was just reaching for the box.
Again, whenever she saw my grandma she barked.

So we said we cant keep this dog. No matter how Much she loves me. She has to love everyone in the house. We had 13 people coming to our house for some family thing. I suggested we get her out and away from the house for this, but that didn't end up happening. We moved her out to the front yard, again I didn't think this was a good idea because she hasn't really been out there. but she just barked all day constantly, and everyone is getting annoyed . She doesn't bark when I go out there but I can't stay out there all day. My uncle build her a pen And we are trying desperately to find her a home. I love this dog, but I can't be the only one that's able to go near her. I got stuck with all the responsibility of this dog, only because she doesn't hate me.

What I need is some suggestions. I don't think anyone is going to be able to want, or keep her if she bites everyone.
I really don't want to take this dog to the pound because they'll put her to sleep right away.
I'd also like some opinions as to why she behaves this way, and is there any way to fix it.

We took her to the vet, she did good. She got a rabbis shot and something else. The vet said that she was around four years old.

I really would appreciate some help. Thank you.

It is not possible to know what this dog has gone through 'till in its desperation it forced itself to your care.
It obviously needs serious behavioural treatment and the love which only You are giving her.
I think she protects you as best she can and is not socialized, never mind being tortured from the people she has escaped from.
You need a good Book on Dog behaviour (from the library so you won't have to buy) and read to understand what goes on in her tortured soul.

Keep her where she wants to be and keep her away from other people, untill you understand what is going on.
She is also frightened of being beat or kicked, until she learnes to trust.
She Loves you and will protect you from people she doesn't know.

Find her a place (in the house or in her favourite yard) and keep her fenced, till you know how to react and re train her to the loving dog that she can be

You might want to check this out, too: http://dogwise.com/forums

Personally I think you have a serious problem, and need some serious help from a professional trainer who works with behavioral problems. I don't think reading a book is going to give you the help you need.

It's impossible to know why she acts the way she does. Don't assume it's because she was abused, kicked, hit, or whatever. She may act like she does because she was over-indulged and never learned any manners. In other words, maybe she's a spoiled brat. There are way more dogs that bite because no one ever taught them not to than there are dogs who bite because they were abused.

If you want to keep her she needs serious training and behavior intervention. If you're not up to that, try to contact a Doberman Rescue in your state for help.