The costliest error remains using the agent’s recommended lawyer. The seller gets a commission on completion, which is not the same as looking after your interests. An independent lawyer represents a small fraction of the purchase and is the single best safeguard.
Signing in a language you do not speak is nearly as costly. An official translation is inexpensive set against what is at stake. Verbal assurances will not help once a dispute starts — the contract is what counts.
Purchasing off-plan on trust has wrecked a great many buyers. Before paying anything, examine what the company has already delivered, the planning approvals, and how deposits are protected. Late deliveries are normal even with reputable builders; abandoned sites are the exception but far worse.
Ignoring the exit is a subtler error. A home bought abroad will one day be sold, and the next buyer decides what you get back. A buy property in gonyeli that only appeals to foreign buyers takes longer to sell when sentiment turns.
Last of all, plenty of purchasers misjudge the annual paperwork. Tax filings may be required even when the home sits empty, buy property in slovenia and late filings generate fines nobody warns you about. Putting in place a local accountant from the first year prevents most of these problems.