Signing Key

I built some apps using eclipse ,and added them to my playstore account now after 2 months google have started to suspend them because they dont like where the adds are ,So I have unpublished them to save my account.

I want to rebuild these apps with seattle clouds but they use there own key is there away to build in seattle clouds then sign the apk with my own key?

I don’t know what seattle clouds is, but if you can find a way to remove their signature and key, see this for how to sign an unsigned apk with jarsigner: Sign your app  |  Android Studio  |  Android Developers

Follow the instructions to use keytool to create your key. Then sign with jarsigner (the ant instructions).