File for adverse possession/quiet title/damages

Evicting someone is only for the purpose of legally obtaining possession of your property, and doesn't automatically give you a monetary judgment nor does it usually affect the credit.  

The real issue is if they are going to trash the house before you take possession.

All parties are jointly and severally liable (provided the lease states such) until you regain possession of the unit or you negotiate with them to change the lease to release one person and/or add another.  

The best course of action right now is to get possession as quickly as possible so you can get it back on the market.

If you have a judgement for possession/execution from a judge thats a different story.

If the landlord doesn't provide the "final report on deposits" within 14 days of receiving back possession of the unit, then the tenant will be entitled to a full refund of all security deposits paid.

The co-signer must also be COLLECTIBLE and have the same qualification to qualify as the applicant who plans to be the tenant.POSSESSION OF THE HOUSEEvery person who will be in Possession of the home, that is of legal age, must be on the lease and must qualify, therefore be COLLECTIBLE, or have a Co-signer.AND ALL OCCUPANTSWhen you type up a lease you should always have on all legal forms the tenants names and these words "AND ALL OCCUPANTS.

In one case, I was a nice guy and allowed the tenants to leave their heavy possessions in the garage (post eviction), without the ability to enter the residence, and arrange to schedule to pick up later.

It usually takes a while, anyway, to close escrow so if they file an eviction right away, then it should be vacant when you take possession as a condition of sale.