4) For off plan purchases ALWAYS ensure that you do not pay instalments until you have verifiable evidence of an aval or bank guarantee – not just one stated to be available but one actually citing you as the beneficiary. Demand this evidence.
Good advice in general except this quoted part.
All off-plan are paid through stage payments and the bank guarantees or insurance policies are only given, as it’s logical, after the stage payments have been paid.
No bank will give you bank guarantee on stage payments which have not been paid. So recommending people not to pay stage payments until evidence of an aval is provided is a surefire way of breaching the contract and losing your deposit. 100 % loss guaranteed.