666 On and after Mr Harrison was first introduced to Mrs Schipp as a solicitor and spoke with her and Mr Cameron in relation to Mary Street, and through the whole of his dealings with Mrs Schipp and Mr Cameron, it would have been possible for him to leave his hat as solicitor in the cupboard. For present purposes, his professional discipline would then have been no more relevant than it would have been had he been a physician or lion tamer. But here, Mr Harrison allowed the fact that he was a solicitor to intrude into his dealings with Mrs Schipp from time to time in a fashion which engages and brings into play various obligations and duties which would not otherwise have attached to him. He offered to "do the legals" and drew up contracts which were to be entered into between himself and Mrs Schipp and others. He gave Mrs Schipp legal advice on some topics. He invited and encouraged her to deal with him and his wife in relation to Kembla Street. The fact that Mrs Schipp did not ask him to advise her about her personal position and, in that sense, did not regard him as she would a family solicitor [Transcript page 794.45] does not detract from the fact that, in giving legal advice, he exposed himself to an obligation to use care in so acting, and importantly gave Mrs Schipp reason for treating him, as she did, as acting as a solicitor in that matter. As a solicitor, he acted for her at the same time as acting for himself and other joint venture partners. As a solicitor, he completed the Mary Street conveyance, and then as a solicitor, he deposited the moneys owing to the vendors of Mary Street into a bank account. During the whole of the period that he was acting as a solicitor in relation to the sale of Mary Street, up to and including all periods when the settlement moneys were in his hands, or, at his direction, paid into the solicitor's settlement deposit bank account and not yet accounted to the persons entitled to the proceeds as vendors of Mary Street, he retained his hat as solicitor squarely on his head. It was not then appropriate for him to use the fact that he held these funds as a bargaining chip in his efforts to induce Mrs Schipp to enter into the Kembla Street Joint Venture Agreement. Thus, in one place, one has the combination of a solicitor's obligations to his clients who here include Mrs Schipp; a promoter's obligations on Brian v UDC principles (Cf Catt v Marac Australia Ltd (1987) 9 NSWLR 639), and a situation in which trust and confidence has been placed by Mrs Schipp in the solicitor, both as a Mary Street joint venture partner of hers engaged in the winding up of the joint venture [Chan v Zacharia (1984) 154 CLR 184], and as the solicitor handling the conveyancing aspects of the sale of Mary Street, and finally a situation in which Mrs Schipp is under a specially disadvantageous situation in the position she occupied in very late 1988, by which time Mr Cameron and Mr Harrison had so manipulated her that she was, in a real sense, a pawn in their hands.