Massachusetts Rules of Professional Conduct Rule 1.8: Conflict of Interest: Prohibited Transactions
(a) A lawyer shall not enter into a business transaction with a client or knowingly acquire an ownership, possessory, security, or other pecuniary interest adverse to a client unless:
(1) the transaction and terms on which the lawyer acquires the interest are fair and reasonable to the client and are fully disclosed and transmitted in writing to the client in a manner which can be reasonably understood by the client;
(2) the client is given a reasonable opportunity to seek the advice of independent counsel in the transaction; and
(3) the client consents in writing thereto.
(b) A lawyer shall not use confidential information relating to representation of a client to the disadvantage of the client or for the lawyer's advantage or the advantage of a third person, unless the client consents after consultation, except as Rule 1.6 or Rule 3.3 would permit or require.
(c) A lawyer shall not prepare an instrument giving the lawyer or a person related to the lawyer as parent, child, sibling, or spouse any substantial gift from a client, including a testamentary gift, except where the client is related to the donee.
(d) Prior to the conclusion of representation of a client, a lawyer shall not make or negotiate an agreement giving the lawyer literary or media rights to a portrayal or account based in substantial part on information relating to the representation.
(1) a lawyer may advance court costs and expenses of litigation, the repayment of which may be contingent on the outcome of the matter; and
(2) a lawyer representing an indigent client may pay court costs and expenses of litigation on behalf of the client.
(1) the client consents after consultation;
(2) there is no interference with the lawyer's independence of professional judgment or with the client-lawyer relationship; and
(3) information relating to representation of a client is protected as required by Rule 1.6.
(g) A lawyer who represents two or more clients shall not participate in making an aggregate settlement of the claims of or against the clients, or in a criminal case an aggregated agreement as to guilty or nolo contendere pleas, unless each client consents after consultation, including disclosure of the existence and nature of all the claims or pleas involved and of the participation of each person in the settlement.
(h) A lawyer shall not make an agreement prospectively limiting the lawyer's liability to a client for malpractice unless permitted by law and the client is independently represented in making the agreement, or settle a claim for such liability with an unrepresented client or former client without first advising that person in writing that independent representation is appropriate in connection therewith.
(i) A lawyer related to another lawyer as parent, child, sibling, or spouse shall not represent a client in a representation directly adverse to a person whom the lawyer knows is represented by the other lawyer except upon consent by the client after consultation regarding the relationship.
(1) acquire a lien granted by law to secure the lawyer's fee or expenses; and
(2) contract with a client for a reasonable contingent fee in a civil case.
Adopted June 9, 1997, effective January 1, 1998.
Transactions Between Client and Lawyer
 As a general principle, all transactions between client and lawyer should be fair and reasonable to the client. In such transactions a review by independent counsel on behalf of the client is often advisable. Furthermore, a lawyer may not exploit information relating to the representation to the client's disadvantage. For example, a lawyer who has learned that the client is investing in specific real estate may not, without the client's consent, seek to acquire nearby property where doing so would adversely affect the client's plan for investment. Paragraph (a) does not, however, apply to standard commercial transactions between the lawyer and the client for products or services that the client generally markets to others, for example, banking or brokerage services, medical services, products manufactured or distributed by the client, and utilities' services. In such transactions, the lawyer has no advantage in dealing with the client, and the restrictions in paragraph (a) are unnecessary and impracticable.
[1A] Paragraph (b) continues the former prohibition contained in DR 4-101(B)(3) against a lawyer's using a client's confidential information not only to the disadvantage of the client but also to the advantage of the lawyer or a third person.
 A lawyer may accept a gift from a client, if the transaction meets general standards of fairness. For example, a simple gift such as a present given at a holiday or as a token of appreciation is permitted. If effectuation of a substantial gift requires preparing a legal instrument such as a will or conveyance, however, the client should have the detached advice that another lawyer can provide. Paragraph (c) recognizes an exception where the client is a relative of the donee or the gift is not substantial.
 An agreement by which a lawyer acquires literary or media rights concerning the conduct of the representation creates a conflict between the interests of the client and the personal interests of the lawyer. Measures suitable in the representation of the client may detract from the publication value of an account of the representation. Paragraph (d) does not prohibit a lawyer representing a client in a transaction concerning literary property from agreeing that the lawyer's fee shall consist of a share in ownership in the property, if the arrangement conforms to Rule 1.5 and paragraph (j).
Person Paying for a Lawyer's Services
 Paragraph (f) requires disclosure of the fact that the lawyer's services are being paid for by a third party. Such an arrangement must also conform to the requirements of Rule 1.6 concerning confidentiality and Rule 1.7 concerning conflict of interest. Where the client is a class, consent may be obtained on behalf of the class by court-supervised procedure.
 Paragraph (h) is not intended to apply to customary qualifications and limitations in legal opinions and memoranda.
Family Relationships Between Lawyers
 Paragraph (i) applies to related lawyers who are in different firms. Related lawyers in the same firm are governed by Rules 1.7, 1.9, and 1.10. The disqualification stated in paragraph (i) is personal and is not imputed to members of firms with whom the lawyers are associated.
Acquisition of Interest in Litigation
 Paragraph (j) states the traditional general rule that lawyers are prohibited from acquiring a proprietary interest in litigation. This general rule, which has its basis in common law champerty and maintenance, is subject to specific exceptions developed in decisional law and continued in these Rules, such as the exception for reasonable contingent fees set forth in Rule 1.5 and the exception for certain advances of the costs of litigation set forth in paragraph (e).
Corresponding ABA Rule. Identical to Model Rule 1.8 except for paragraph (b).
Corresponding Former Massachusetts Rule. DR 4-101 (B)(2), DR 4-101 (B)(3), DR 5-103, DR 5-104, DR 5-106, DR 5-107 (A) and (B), DR 5-108, DR 6-102.
Cross-reference: See definition of "consultation" in Rule 9.1(c).