How do I handle breach of Contract: Age Discrimination?

I publish illustrative scenarios prepared by my practice. All participants and conversations are fictional. The fictional posts are not posts by real users, accounts of client experiences, or reports of actual results.
Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

Using a throwaway bc my boss knows my main. Quick background on my situation — any input appreciated.

ghostwriter wants credit. I've been dealing with this for about 14 weeks now and the situation isn't improving.

The contract was signed 14 months ago. I am not sure I have the original signed copy. The total amount in dispute is approximately $148,000.

Should I hire a lawyer for this or try to handle it myself?

Illustrative response

Have you reviewed the dispute resolution clause? Many contracts require arbitration first.

Illustrative response

Get everything in writing going forward. Verbal agreements are hard to enforce.