I don't know the law in your area but it should be something like a tenant holding over, Wrongful Detainer, or a traditional tenant eviction.

I will be serving her a Three day pay or quit followed by a Detainer for a Eviction.

Hire a law firm that specializes in unlawful detainer's post foreclosure.

The forcible detainer(eviction) along with the form that states they are not active military are required to be notarized when filing the eviction with the JP Court. 

@Rob DukeAs much as it hurts you cannot change locks etc, squatter has same rights as a tenant, you have to file an unlawful detainer, unless he leaves on his own. 

If you stay on top of serving the 3 day notice and serve the unlawful detainer quick, usually the tenants leave willing so they don't have an eviction on their record.

At the same moment I was looking at the unlawful detainer record for our county and see 7 evictions in 10 years.

it is unclear to me if you have possession of the house and the tenants have leftIf the tenants have not left, then go thru the unlawful detainer process to obtain possession (other things can also be done)if you have possession, there's no need for a warrant since you are allowing entry

Any suggestions or ideas would be very much appreciated.I also sent a 10 day unlawful detainer certified mail today.

If you file the unlawful detainer on your own or have your PM do it, you will not get legal fees, and thus your collection efforts will be  reduced by the attorney's fee.