No. Paying the fee, and even passing vetting, confers no immigrant status; the couple may live in the United States only after an immigrant visa is issued and used, and until then their visits remain visitor entries.
The move follows the visa, not the receipt
The official sequence is application and the processing fee, an I-140G submission and vetting, the gift on instruction, and the remaining immigrant-visa or adjustment steps, subject to admissibility and visa availability. Before admission as permanent residents, the Torbay couple do not obtain residence merely by paying the fee, passing vetting or making the gift. Selling the Torbay home and attempting to reside with their adult child through visitor entries can lead to refusal of entry or misrepresentation issues because visitor status does not authorize U.S.
residence. The correct plan keeps each visit within visitor limits and treats any timing estimate from the portal, an intermediary or a news article as non-binding. When an immigrant visa is issued, it carries a validity window for the first entry, and the sale and move should be planned within that window.
A couple who want to spend longer periods near their child in the meantime should ask about visitor-status limits rather than assume the pending Gold Card process changes them.