Hi
Solicitor, Legal Exec or Will Writer ?
All of the above are more than capable of writing a cast-iron will to provide for and protect your families.
The choice is really down to the individual but just make sure that the organisation you use has a good track record, Professional Indemnity Insurance and, as is the case with many things in life,
make sure you get a good referral from a friend, colleague etc.
Things to do:
Do keep it updated. Most firms will offer an arrangement where provisions of a will can be updated as part of the fee - or even complementary rewrites. It is of paramount importance to keep these documents updated after life events such as births, marriages, deaths, divorces & matters such as house purchases.
Do go for an organisation who understand the potential tax implications of inheritances. You don't want to leave partners and children with a tax liability they have to sell the house for.
Don't go for a solicitor, bank or other institution who waive a writing fee based upon the promise of a probate fee. Some banks in particular are known to charge up to 10% of the estate value for probate services. That's a lot of money.
Don't go to the stationers or the post office and try to write one by your own. DIY kits seem straightforward but a majority are proven to fail at court when contested by a disgruntled relative represented by a sharp-eyed barrister. Similarly, online wills are growing in popularity but the industry is carefully watching the courts to see how contestable the doctrine of 'capacity' is when formal instructions have been taken through an email.
I hope this helps