Onboarding interim legal and compliance staff: day 1 to day 30

Short answer: An interim lawyer or interim compliance professional becomes productive quickly when the contract, access rights and device are ready before day one, a named contact and a priority list are waiting on the first day, and a structured review takes place after 30 days. Onboarding an interim lawyer then takes days rather than weeks. The single most important step is a written handover of all open matters and deadlines in week one.

This checklist is for general counsel, heads of legal, heads of compliance and HR leaders in Switzerland and Germany who are onboarding an interim professional. It shows who does what and when, from the contract to the 30-day review, and includes a template you can copy.

Why onboarding interim professionals is different

Interim professionals have less time to settle in than permanent hires, because the assignment is fixed-term and usually fills an urgent gap. Every week without access to systems or files cuts into productive time. At the same time, experienced interim professionals are used to joining new organisations. They need less general induction and more early clarity on matters, deadlines and decision paths.

Onboarding also depends on the engagement model:

• Staff leasing (Personalverleih in Switzerland; Arbeitnehmerüberlassung, i.e. German temporary agency work, in Germany): the client company holds the right to give professional instructions and the professional is integrated into its organisation. Onboarding resembles that of a new employee, covering team integration, internal rules and working hours.
• Freelancing: the professional works independently within the agreed mandate. Onboarding focuses on the scope of the mandate, contacts, access and interfaces.

Before day one: contracts, access, equipment

Before the first working day, the contract, confidentiality, access rights and workplace should be settled. These items delay the start most often because several departments are involved.

• Contracts: assignment contract with the provider signed; engagement model, workload, duration and reporting line recorded.
• Formal requirements under staff leasing: in Switzerland, the staff leasing contract must be in writing and in place before work starts as a rule (Art. 22 AVG, Art. 50 AVV). In Germany, the contract must expressly designate the arrangement as Arbeitnehmerüberlassung (temporary agency work) and name the person before the assignment (Section 1(1) sentences 5–6 AÜG). Where a works council exists, it must be involved beforehand under Section 99 BetrVG (Section 14(3) AÜG).
• Confidentiality: check whether the confidentiality clause in the contract is sufficient or an additional undertaking is needed.
• Conflicts of interest: list of counterparties and group companies checked.
• IT: user account, email address, VPN, device or rules for using the professional's own device.
• Access rights: contract management system, document storage, intake tool and, for compliance roles, KYC or monitoring systems. Grant only what is needed.
• Workplace and badge: building access, desk, parking or travel details.
• Welcome email: time and place on day one, contact person, agenda for the first week.

Allow for your IT team's internal lead time. If the start date comes before access is granted, the first week is lost. Roles and rights are covered in confidentiality and access for interim staff.

Day one: introduction, contacts, priorities

On day one, the interim professional needs three things: a named contact, a list of key stakeholders, and the three to five priorities for the first weeks. A general company presentation is secondary.

1. Welcome from the reporting manager: goal of the assignment, expectations, availability rules.
2. Check the technology: log-in, access rights, phone. Report missing rights immediately.
3. Hand over the stakeholder list: key contacts in the business, finance, HR and outside law firms.
4. Set priorities: three to five topics with deadlines, in writing.
5. Explain approval rules: what the person may approve alone and what must be escalated.
6. Book meetings: a weekly check-in and the 30-day review in the calendar.

A "buddy" from the team who answers practical questions about templates, filing structure and unwritten rules works well.

Week one: take over matters and deadlines

In week one, the professional takes over the open matters with all their deadlines. This handover is the most important step of onboarding, because this is where liability and deadline risks arise.

• Handover list: for each matter, status, next steps, deadlines, counterparty, internal contact and outside law firm involved.
• Deadline control: transfer all deadlines to the team's and the professional's calendars, with a deputy.
• Templates and playbooks: model contracts, clause library, approval matrix and, for compliance, policies and procedures.
• First own matters: after two or three days, the person should be handling their own cases.
• Short feedback at the end of the week: what is still missing in access, information or authority?

If there is an overlap with the current role holder, for instance for parental or maternity leave cover, use it for joint meetings with key stakeholders. In the case study on parental leave cover for a senior legal counsel, a one-month overlap was part of the nine-month assignment.

Day 30: review and adjust

After 30 days, the reporting manager and the professional check together whether tasks, workload and authority still match the need. Many assignments change after the first month, because the real workload only becomes visible then.

• Goals: are the day-one priorities done or on track?
• Scope: is the workload right? Should it go up or down, or is a second person needed?
• Authority: can approval thresholds be raised to take load off the head of the team?
• Collaboration: are stakeholders, law firms and escalation paths working?
• Prepare the handover: is work being documented from the start so that the assignment ends in an orderly way?

For an assignment through Alpinum Solutions, the review is also the right moment to adjust workload or term. How to extend, end or hand over an assignment is explained in extending or ending an interim assignment.

Onboarding checklist for interim lawyers: who does what, when?

The table below summarises onboarding. The responsibilities are a suggestion and can be adapted to your organisation.

Limits and risks in onboarding

The biggest risks lie in deadlines, access rights and unclear responsibility. Keep four points in mind:

• Deadlines without handover: if a deadline is not transferred, the risk stays with the company. Deadline control belongs in week one.
• Access rights that are too broad: broad rights speed up the start but contradict the need-to-know principle. Limit access to the matters of the assignment.
• Treating freelancing like employment: fixed working hours, integration like staff and constant detailed instructions do not fit freelancing. In Germany, instructions and integration indicate employment (Section 7(1) SGB IV). In Switzerland, the AHV compensation office assesses status on the economic reality, not the contract (Art. 5, 9 AHVG).
• Responsibility stays with the company: Alpinum Solutions provides professionals and leaders through staff leasing and freelancing and does not give legal advice. The client company directs the assignment and remains responsible for its legal and compliance function.

Frequently asked questions about onboarding interim professionals

How long does it take to onboard an interim professional?

With access prepared and a written handover, an experienced interim professional usually works on their own matters after a few days. The 30-day review shows how far they have settled in with stakeholders, processes and templates. Missing IT access and missing handover lists slow onboarding down the most.

Who is the contact person for the interim professional?

The contact is the person the professional reports to, usually the head of legal or compliance or a team lead. They set priorities, sign off results and decide on escalations. A buddy from the team helps with practical questions. For contract, workload and term, the provider, such as Alpinum Solutions, remains the contact for both the company and the professional.

Does an interim professional need a company device?

That depends on your IT and data protection rules. Many legal and compliance departments require a company device because confidential data and matter files may only be handled in controlled environments. Under freelancing, the professional's own device can work if access runs through secure connections. Settle this before the start, because procurement takes time.

What belongs in the handover of open matters?

For each matter, the handover should include status, next steps, all deadlines, counterparty, internal contact and any outside law firm involved. Add notes on anything sensitive, such as difficult relationships or ongoing negotiations. One table per matter is enough. What matters is that every deadline is also in the team calendar and has a deputy.

Does onboarding differ between staff leasing and freelancing?

Yes, in the degree of integration. Under staff leasing, the company holds the right to give professional instructions; the professional joins the team and learns internal rules, working hours and lines of instruction. Under freelancing, the professional works independently within the mandate; onboarding focuses on scope, interfaces and access. Deadlines, confidentiality and handover apply equally in both models.

Next step

Good onboarding starts with a precise briefing before selection. If you need an interim legal or compliance professional, we are happy to discuss your needs.

• Interim legal for companies and law firms
• Briefing an interim lawyer: a template for a precise role profile
• Interim compliance for companies and financial institutions
• Discuss your needs

Last updated: 30 October 2026.