The Girls Aloud star and the Chelsea footballer - who announced their separation on Tuesday - have pet Chihuahuas Buster and Coco.
Legal experts predict that a divorce could be finalised in weeks because Cheryl, 26, and Ashley, 29, have no kids.
'By May or June this could all be over - unless one party is really wanting to take the other party to the cleaners,' solicitor Mark Stephens tells the Daily Mirror.
'And I can't believe they'd be advised to do that in circumstances where they are both independently wealthy.
'I think they'll both go their separate ways as discreetly as possible. I think it will be carried out behind closed doors.'
Cheryl and Ashley have a estimated joint fortune of £26million, which experts predict they will share equally.
The split follows allegations that Ashley cheated on The X Factor judge.
Where to next?
- Cheryl's revenge
- Cheryl and Ashley's real relationship revealed
- What makes some men cheat?