I bought in SA a few years ago. This is my personal experience only and I would recommend you get professional advice. But on the few offers I've submitted in SA, yes I put pretty much exactly what you put in your post on the letter of offer - either the agent's template, or I think there's a REISA template, or just in an email or basic letter of offer I typed up myself. Sometimes I used the phrase "subject to finance" and I knew the vendor and agent would know what I meant, but after a while I switched to "subject to satisfactory finance" or "subject to finance satisfactory to the purchaser" because this is the phrase I wanted transferred across to the contract. Yes, the agent adds these clauses to the contract of sale if your offer is successful. I wanted the finance clause to be more than just "subject to the purchaser securing finance" because, if my pre-approval turned out to be a bust and I couldn't actually go with my preferred lending institution, I could be forced during the 30 day settlement period to go with any lender who would take me (including at a non-competitive rate or crappy conditions). Whereas, if I made the clause "finance satisfactory to the purchaser" then that meant I could pull out if my approval fell through and I couldn't get something at a similar interest rate. Similarly, if you were to put a building or pest inspection clause in the contract (generally I didn't, I kept this to the cooling off period) I'd be checking the wording of the clause in the contract because it would be terrible if the wording was essentially that the contract had to go ahead once a building or pest inspection went ahead, regardless of the findings!