Have the purchase contract checked

we could then save ourselves the lawyer

The lawyer is supposed to point out the risks you take when signing (without changes). That alone is worth their fee! By the way, the opposing party is always better equipped (legally advised, in their favor).

Good example from personal experience. We had a contract for a prefabricated wooden house. We also had it reviewed (even though the provider probably prints out 500-600 of these per year). Generally, a very good explanation from our lawyer about what certain things in the contract mean in terms of consequences.

Among other things, a small change to the reservations granted to us.

Had no problems actually invoking these.

There are some on the market that have supposed reservation clauses that make withdrawal seem easy, but then you end up facing penalties or a lot of trouble in the end.

The lawyer is supposed to point out the risks you take when you sign (without changes). That alone is worth their fee!

If you haven't understood the contract, you get expert advice - that's logical.

For my part, I can only say that this is money thrown away if you can't change anything. Of course, I assume that you have understood the contract and the resulting consequences. Otherwise, you shouldn't sign any contract anyway, whether it's a house contract or anything else...

If you are familiar with this subject, that shouldn't be a problem. After reviewing several house contracts, you know almost all the formulations anyway...