How is “take free” grammatical

1. How is take free grammatical? Adverbs modify verbs, not adjectives. take free should be take freely. Correct?

2. take free feels ungrammatical. Humans can't just take free. free must modify a noun. Example — Kids love to take free candy.

So, if the trust property is sold by the trustee without authority under the trust instrument, and the purchaser
has provided some value for the transfer in good faith and without notice of the existence of the
beneficiary’s equitable proprietary interest, the purchaser will take free of that proprietary interest.137 In
such circumstances, the beneficiary still has a claim against the trustee for breach of trust.

Paul Davies. Equity Text Cases Materials 2019 3 ed. Page 56. Emboldings are mine.

Certain encumbrances may be revealed while the purchaser is checking the vendor’s
title, but a range of other enquiries and inspections are also needed. As we shall see,
many third-party rights will bind the purchaser whether he or she knows of them or
not, but there are still some other rights which will not bind a purchaser who can show
that they have not been discovered, despite the making of all the right enquiries (see
5.5.2.2–3). The purpose of making these inquiries is therefore twofold:

• to inform the purchaser about encumbrances; and
• to enable the purchaser to override (take free of) certain rights of which he or she is
unaware.

Aruna Nair. Textbook on Land Law 2020 18 edn. p 69.

      Thus even the purchaser of an equitable interest in the property can take an interest
free from an unregistered charge. For example, if X has a puisne mortgage (C(i)) over
Blackacre, which has not been registered, and later the fee simple owner grants an
equitable mortgage to Y, Y will take free of X’s rights. Thus, Y’s rights will take priority
over X’s. If the estate has to be sold to pay back the sums due under the mortgages, the
debt owed to Y will be paid first and X may find that there is not enough money to pay
in full (see Chapter 23).

Aruna Nair. Op. cit. p 74.

Overreaching certainly cannot take place: LPA, ss 2(1)(ii)
and 27(2) make it clear that overreaching depends upon there being two trustees. This means
that we are thrown back on priority principles. In registered land, a purchaser will be bound
if there is an entry on the register or an actual occupation overriding interest.247 Otherwise,
the purchaser (once registered) will take free of the beneficial interests.248

Roger Smith, Property Law 2020 10 edn. p 357.