Lead with the business result
Open with the result the client is buying, then connect deliverables to it. Avoid beginning with internal process detail.
Use plain language and keep the most important commercial facts easy to scan.
Surface the decisions
Highlight price, deposit, timing, exclusions, revision rounds, client inputs, and change control.
Explain unusual assumptions before the client has to discover them in a dense paragraph.
Give one next step
State who approves, how approval is recorded, when the offer expires, and what happens immediately after approval.
Follow up with answers tied to the document rather than starting a second informal scope in email.