Can dwell time be waived?

After having been stationed overseas, I have quite a large amount of dwell time build up. My current unit is on rotations and deploy next year. I am told that they also like to send everyone they possibly can and are usually willing to write waivers for anything. I want to know if dwell time exceeding 24 months is able to be waived and if there is anything I can do to stop it. I haven't been stateside and able to see family for over 2 years and would like not to be sent straight back overseas. Thanks for the help!