Yes. This step is crucial. An experienced family lawyer can assess how the agreement will work for you in the long term and tell you whether it’s likely to meet your needs. Your lawyer can also identify any disadvantages to signing the agreement and advise you whether it will work for you.
The agreement is invalid if you and your partner haven’t received independent legal advice.This means it has no effect and can’t be relied on by your partner (or you) if the relationship breaks down.
Under no circumstances should you sign an agreement before receiving independent legal advice.