What a useful German client letter actually shows
A credible letter of intent explains the relationship, likely assignment and commercial context without pretending to be a signed contract.
A letter of intent can help an authority understand why your work has a connection to Germany. Its value does not come from formal-sounding language. It comes from a real prospective client describing a plausible need.
Details that add substance
The letter should identify the client, your professional relationship and the kind of assignment being discussed. Useful specifics include an expected start period, approximate scope, rate basis and why the work is relevant to that client. Contact details and the signer’s role make the statement easier to understand.
Avoid false certainty
A prospective client does not need to promise work that has not been commissioned. Overstated guarantees can create questions when the rest of the evidence shows an early-stage conversation. A straightforward statement—subject to budget, schedule or a final brief—is often more credible.
Place it within the wider file
One German letter does not erase years of viable international work. Your existing Thai and overseas clients, invoices, tax records and portfolio may demonstrate continuity, while German interest explains local demand. The strongest file lets these roles complement one another.
Ask the client to write in a language they understand well. If translation is needed, check the authority’s current requirements rather than improvising a bilingual document.