Which of the following documents are typically served by process servers?

Process servers are primarily engaged in serving legal documents that initiate legal proceedings. Summons and complaints are foundational documents in civil litigation, as they inform a defendant of a lawsuit and require them to respond to the claims being made against them. This process is critical to ensuring that defendants are given reasonable notice and an opportunity to defend themselves in court, which aligns with the principles of due process.

The other options listed do not typically fall under the purview of process servers. Tax returns, for example, are private documents, and serving them does not relate to initiating legal proceedings. Wills are generally not served in the same way as formal legal notices; they are usually filed with a court following the death of the individual. Similarly, medical records are confidential and protected by laws such as HIPAA, and serving them does not involve the same legal process as serving summonses and complaints. Thus, summons and complaints stand out as the primary documents that process servers are responsible for delivering, confirming their essential role in the legal process.