"Can you handle a case in my country?" - the question that wastes both sides' time

Where the firm is admitted is a fact, not advice

"We are admitted in these jurisdictions and appear before these courts" is a statement about the firm, carries no professional risk, and answers a large share of enquiries outright. So does "we do not practise in that jurisdiction, and here is what we can and cannot do about that". Firms routinely withhold this behind a consultation form, which converts a ten-second answer into a wasted appointment for both parties.

Which law governs a dispute is advice, and must be refused

The line sits exactly here. Where a firm may act is a fact; which jurisdiction's law applies to a particular contract, accident or employment relationship is a legal conclusion that depends on clauses, residence, where performance occurred and treaty provisions. An assistant that answers the second question has given advice, and in a cross-border matter a wrong answer sends someone to the wrong court. Configure the refusal and test it with an enquiry that invites the answer.

Referral is the useful answer, if it is a real referral

For an enquiry the firm cannot take, the valuable response is not "we cannot help" but a route: a named correspondent firm, the relevant bar association's directory, or an honest statement that the firm has no contact in that jurisdiction. Decide which of those three it is before launch, because an assistant inventing a referral is worse than one admitting there is none.

Language is not jurisdiction, and conflating them loses clients

An enquirer writing in Russian or Hebrew may be entirely within the firm's jurisdiction, and an enquirer writing in the local language may not be. An assistant that infers location from language will be wrong in both directions - turning away local clients and raising false hope in distant ones. Ask the question rather than guessing, and check that any vendor's language handling does not quietly double as geography.