Why this exists
About three and a half million property rights in the Greek cadastre are listed under an unknown owner. A lot of them belong to families who emigrated.
Why I built this
I'm a software engineer in Athens, and Kliros started with a property in my own family. There was no fight over it and nobody was suing anybody. The problem was simpler and more annoying than that. I couldn't find anyone to tell me which of six or seven procedures we actually needed, what it would cost, or which deadlines we'd already missed. Every professional I asked sounded sure of themselves, and each one was talking about a different procedure.
So I looked into how common this is, and found that 3.45 million property rights in the Greek cadastre are listed under an unknown owner. That changed how I saw it. It wasn't just bad luck in my family. The system was failing people all over the country, and a lot of those families left Greece a generation or two ago. They don't have a Greek tax number or a power of attorney, and nobody told them there was a correction deadline with a fixed end date.
Kliros is what I needed back then and couldn't find. Being an engineer and not a lawyer shows in how it's built. The rules are written as code, every figure shows where it came from, and each rule has its own test, so changing one can't quietly break another. That beats asking three people and averaging what they say. It's also why Kliros can't give you advice. It can tell you which procedure your situation points to and give you a file a Greek professional can work from, and it stops there.
I'm not a lawyer and Kliros isn't a law firm, so I've kept to two rules. The answer about your procedure is free, because charging for it would mean selling advice I'm not licensed to give. And I don't take a cut from any case, because then I'd have a reason to push you towards the pricier option. I've written up the reasoning in the decisions record, which anyone can read.
Nobody tells you which procedure you need
Say you're Greek-American and your grandmother left you a house on an island. You probably don't have a legal problem as such. The trouble is that nobody will tell you which of six or seven possible procedures applies to you. So you can't tell whether you need a notary, a surveyor, a mediator or a litigator, or whether the quote you got makes sense.
And the clock keeps running. The inheritance tax return has a due date. The renunciation period ends and you're treated as having accepted. The cadastre correction deadline passes, anything still listed as unknown owner goes to the Greek State, and getting it back means a lawsuit. Nobody writes to tell you any of these dates.
What we built
A check that follows the actual rules, including Law 5303/2026 on inheritance, article 61 of Law 5326/2026 on unknown-owner mediation, the cadastre correction deadlines and the tax brackets for each kind of heir. From your answers it works out which of eight tracks you're on. Every number comes with its source, and the sources are listed at the bottom of every page so you can check them yourself.
For people who want to get moving, there's also a file. It sets out the case the way a Greek professional expects to see one, with a cover letter in Greek, so your first conversation starts from the facts and not from zero.
What we're careful about
We don't practise law and we don't take a cut of any case. We could make more money charging for the legal answer and taking referral fees, and we chose not to. If you want the full reasoning, it's in our decisions record, which is public.
We also delete your data. Your answers are about someone who has died, and sometimes about co-heirs who never signed up for any of this. So they're deleted after twenty-four months, or straight away if you ask.