My name is Echo!

This is echo. She will be 9 in July. Shes fixed. She's a pit mix, but I have no clue what she is mixed with.
She's a great dog. She's friendly to people, but once she establishes her territory she's a very good protective dog.. She is NOT animal friendly AT ALL. So she cannot go to anyone with other animals. I put unknown if she is good with kids be ause she absolutely adores my kids and all the kids on my side of the family, there about 15, but I don't know how she'll do with kids she's never met. I've never got to experience it so to be safe I'm putting unknown. She's house trained. She LOVES swimming. She's been my baby for 8 years almost 9. We're gonna miss her deeply but I need to do what is best for her. If I can't find a home soon, she will need to go to a shelter and if she shows any aggression they may put her down and I am trying to avoid that. She only shows aggression towards other animals so it makes me nervous.