You choose and use the tools and techniques of collection, including wage garnishment, bank levy, debtor exam, etc.

Do a chargeback with your credit card company.

The lien means that if the property is sold or a loan is sought, the lien must be addressed.

The answers may be here: https://mva.maryland.gov/about-mva/Pages/info/27300/27300-36T.aspx

Use the Avvo search tool to find an attorney. https://www.avvo.com/find-a-lawyer

See California Rules of Court Rule 3.1700. Prejudgment costs.

Even written off debts can be collected on within the statute of limitations time period.

If a probate was filed, you can check the court records. Some states allow the filing of wills and powers of attorneys. Researching this could...

Use the Avvo search tool to find an attorney. https://www.avvo.com/find-a-lawyer Use the practice area probate.

Verbal loans can be valid contracts.