how to introduce full grown dogs?

[Terri]

I have to move back home for a bit, I have 2 fixed female Rottweillers, one is 4 and the other is 3.

They are both well trained and socialized with other dogs. They do not always play with the other dogs at the dog park but so long as the other dogs do not try and mount or jump all over the place they pay little attention to them and do not approach dogs that seem not to be happy at them coming too close.

My dad's dog is a Shepard mix, male that is not fixed, not been worked with much and has no socializing what so ever from what I have been told.

How can I safely introduce these dogs together that is both safe for them and less stressful?

I know Jade-Da my bigger one has only allowed to be a submissive to 1 dog ever. My brothers female Shepard cross. She does not do well with any other dog that tries to dominate her or attacks Tea-Ka or me. She will put Tea-Ka in her place when Tea-Ka takes the play fighting too far. But for the most part they are just to normal dogs that enjoy the case me game and pin the other one on the ground before running away before the other can get up to give case.

I have only had 3 bad experiences with Jade-Da where my neighbors dog (also a Rotti) attacked Tea-Ka when she was 3 months old and then again a few months later.

Took me 15 minutes each time to separate both dogs, Jade-Da followed my commands to go lay down or sit but once the other dog bit me or got out on my control the fight started again as the other dog went rigth back after mine and the other dogs owner wanted them to just fight it out then got pissed when my dog nearly kill his dog each time.

The other time my Landlord had 2 male Rotti's I did not know they were running loss when I took the dogs out for a walk, Tea-KA was in heat so I had her on a short leash, one male tried to mount Jade-Da and Jade-Da floor the male she only held him there by his throat no head shaky thing, but I knew this male to be very aggressive and had nearly killed a few other dogs so I was happy that the male just laid there and did not fight back just whined and whimpered, Jade-Da let him got after a few minutes but was scary as she would not let go even with me telling her to and trying to pull her off, she just kept pushing the male down until he stopped trying to get up. She was full hackels and all teeth the whole walk back to the house as the 2 males followed very close trying to get to Tea-Ka who was practically hiding under Jade-da the whole way back.

Tea-KA on the other hand is the complete opposite. She will wrestle and play fight with Jade-Da but with other dogs she runs away, runs to hide by me or goes into her create. She is a wimp but if Jade-Da barks at something she will too though always stands her ground behind Jade-Da and is the first to find a hiding place where as Jade-Da does not move.

My dad suggested crating his dog and getting my dogs to sit in front of it until his dog stops barking but I think that will only frustrate the dog more and not help the situation.

I was thinking of introducing them on unfamiliar territory and see if they can get along from there before bringing them to an area he sees as his territory to protect.

But I am unsure, I do not what another dog fight and these dogs need to get along as we will be all living in the same house.

Do you have any suggestions on how to approch this?

I am sorry I only know my own dogs behavior and my dad just tells me his goes ape shit when any one, human or dog, walk by the house.