Just a few remarks 🙂
No, you have not. You can open an account for any US LLC outside the US (yes, it it not so easy as inside the US).
🙂 Sorry, this does not make sense. SEPA and SWIFT are different and completely independent payment systems which both can work between any countries, in principle. Particularly, a US LLC can have a SEPA capable account and accept SEPA payments.
Yes, a SWIFT︀ payment is usually more expensive than a SEPA one.
Hence, a US LLC can be used for such a business case.
Yet:
With all due respect, I cannot agree.︂ In my opinion, the options for a Serbian company are not so bad and for︃ a US LLC not so good * 😉
* especially if LLC has no US operations︄ and/or is owned by a non-resident as for this case (UPDATE)
Having said all of︅ that, I want to say that as well as using a Serbian company is possible︆ – and I guess it is – I do not see the reason for switching︇ to a US LLC. You know: Keep it simple, stupid 😉