A Superior Court jury determined that the defendants, Edward L. Cashman, Jr., and Carol Patricia (Patricia) Cashman, his sister, charged excessive rent for office space which they leased to the plaintiff corporation, Puritan Medical Center, Inc. (Puritan). Further, the jury concluded that Edward, one of Puritan’s directors, had misappropriated a corporate opportunity by refusing to renew Puritan’s lease. The jury returned a verdict of $505,100 for Puritan. 2 In addition, the jury awarded the defendants $5,000 on their counterclaim alleging damages arising from Puritan’s holdover after the expiration of its lease. However, the judge entered judgment notwithstanding the verdict on the counterclaim. The judge determined that the defendants’ conduct in “locking-out” Puritan after the expiration of its lease term had been wilfully and knowingly unfair and deceptive within the meaning of G. L. c. 93A, § 11 (1990 ed.), and doubled Puritan’s damages. He also allowed Puritan’s motions for $12,000 in costs and $141,000 in attorneys’ fees. Judgments were entered accordingly. The defendants appeal. We al *169 lowed the defendants’ application for direct appellate review. We reverse the judgment against Patricia on the excess rent claim. We affirm the verdict of $373,100 entered against Edward on the same claim. We reverse the judgment on misappropriation of a corporate opportunity. We also reverse the judgment entered pursuant to G. L. c. 93A (1990 ed.). We reinstate that portion of the jury’s verdict entered on the defendants’ counterclaim that represents recovery for rent owed. We affirm the judgment notwithstanding the verdict as to the remaining portion of that award.
Facts. Edward began his private medical practice in 1954, establishing his office in his parents’ house at 96 Puritan Road, Swampscott. Shortly thereafter, he formed a partnership with another doctor, William Nash. During the 1960’s, they hired two more physicians, and in 1970, the four formed the plaintiff corporation, Puritan. Each became a shareholder, director and officer of Puritan. Edward became and remained treasurer until he suffered a stroke in 1986. During the 1970’s and 1980’s, Puritan hired additional physicians, who also eventually became shareholders, directors and officers. By the time of this litigation, Puritan had eight principals, including Edward.
Puritan continued to operate out of the premises at 96 Puritan Road, owned by the defendants’ parents, who also owned a building at 96A Puritan Road and several adjacent lots. In 1976, the defendants inherited all these properties. Shortly thereafter, Puritan expanded its office space to include á portion of the premises at 96A Puritan Road.
The minutes of a December 20, 1976, board of directors meeting state that “[i]t was agreed that a lease between Edward . . . and . . . Puritan . . . will be signed by the Corporation and/or its representative, William C. Nash, M.D., in the near future. The terms of the lease are to be unchanged for the next five years with a slight cost of living escalation for the following five years. When the lease is available, it will be signed.” Thereafter, Nash, as Puritan’s then-president, executed a lease on behalf of Puritan for the office and parking space then in use. Edward executed the lease on behalf of *170 himself and Patricia as owners. The term of the lease was ten years, from January 1, 1977, through December 31, 1986. The lease provided for an annual rent during the first five years of $24,408 for the office space and $6,000 for the parking space, assumption by Puritan of any real estate tax increases, and, beginning in the sixth year, annual rent increases tied to increases in the Federal consumer price index since the commencement of the lease. Edward, as treasurer of Puritan, wrote out the monthly rent checks payable to himself.
Puritan adduced evidence at trial that Edward had overcharged Puritan over the lease period by more than $450,000. Puritan claims that it discovered the rent overcharges for the first time in March, 1986, when, while Edward was recovering from a stroke, Doctors Casale and Calamita, Puritan’s vice president and president, respectively, reviewed the lease and rent payment records. Puritan’s principals claim that they were unaware of the existence and content of the lease until after Edward’s stroke. Edward testified that he “forgot” about the lease, and had charged Puritan what he thought was “fair.”
After discovering the overcharges, the other Puritan principals voted to remove Edward as treasurer and to relieve him of all his medical and business duties at Puritan. Although they notified Edward that they would be purchasing his shares in Puritan pursuant to their redemption agreement, they had not done so by the time of trial.
By letter dated November 12, 1986, Edward served Puritan with a notice of nonrenewal of the lease and notice to quit by December 31, 1986. Puritan commenced this action on December 19, 1986. On December 26, 1986, Puritan obtained a preliminary injunction enjoining Edward from exercising any managerial functions at Puritan and from interfering with Puritan’s lawful use of the leased premises. On January 1, 1987, the date the lease expired, Puritan delivered a check to Edward in the amount of $7,500 for one *171 month’s rent. 3 Without warning, during the early morning hours of January 14, purporting to act under a “reentry provision” in the lease, Edward retook physical possession of the premises. He moved out Puritan’s records and property, changed the locks, and barricaded the entrance to the driveway. Puritan relocated temporarily to a hospital, and then to office space in Salem. The defendants’ counsel rejected the $7,500 rent check under cover letter of January 15, 1987. Edward resumed his medical practice part-time at the 96 Puritan Road premises.
1.
Patricia Cashman’s liability.
The defendants argue that the evidence was insufficient to permit the verdict that Patricia was jointly liable with Edward on the excessive rent claim. The defendants’ counsel moved for a directed verdict on Patricia’s behalf, and, after the jury returned its verdict, moved for a new trial or entry of judgment notwithstanding the verdict. See
Martin
v.
Hall,
*172
2.
Excessive rent claim against Edward.
A.
Ratification of the rent charges.
Edward argues the judge improperly refused to instruct the jury that Puritan’s directors could have ratified the excessive rent payments by their protracted failure to supervise the corporation’s financial matters. This argument is without merit. While it is true that officers and directors have a duty of reasonable supervision, see
Perkins
v. Rich,
The cases in which courts imply ratification, unlike this case, involve third-party, arm’s-length transactions from
*173
which the corporation received a benefit, and directors who, at minimum, had “knowledge of such facts or circumstances as would put a reasonable person on inquiry and which would lead to full discovery.”
Ingalls Iron Works Co.
v.
In-galls, 177
F. Supp. 151, 162 (N.D. Ala. 1959), affd,
The facts of this case are more analogous to those in
Kidder
v.
Greenman,
Edward further argues that, even as instructed, the jurors could not have found that Edward “had accomplished a nine-year scheme of deception.” We reject this argument as well. The evidence was sufficient to permit the jury to find that the other directors had not discovered, nor had Edward informed them of, the amount of rent which he was charging Puritan. Edward conceded that he did not discuss with the other directors what he thought would be a “fair” rent, did not inform them of the amount of “fair” rent being paid by Puritan, and did not distribute yearly financial reports. It was undisputed at trial that Edward was in charge of all the financial and administrative aspects of Puritan’s operations. Other testimony which the jurors could have believed indicated that (1) Edward was the person who charged or collected the rent payments; (2) most of the critical information with regard to rent payments was kept under lock and key in Edward’s office; (3) the accounting reviews were a mere compilation, which relied wholly on figures supplied to the accountants by Edward; (4) the accountants never provided lease or rent information to the other directors; (5) lease and rent issues were not discussed at directors’ meetings; (6) the only financial data sent to the other doctors related to their own income, not to Puritan’s expenses; and (7) the other directors viewed Edward as a trusted mentor to whom they deferred in business tasks while they focused their time and energy on the practice of medicine. The evidence, viewed in the *175 light most favorable to the plaintiff, supports the jury’s verdict.
B. Statute of limitations on claim of excessive rent. The defendants argue that the judge wrongly refused to impose the six-year statute of limitations set out in G. L. c. 260, § 2 (1990 ed.), 7 on Puritan’s claim of excessive rent. We conclude that the statute of limitations was tolled pursuant to G. L. c. 260, § 12 (1990 ed.), and therefore the judge did not err in refusing to impose a six-year statute of limitations.
There are two important exceptions to the general rule that “a cause of action in contract accrues at the time of the breach,”
Frank Cooke, Inc.
v.
Hurwitz,
“[Bjecause of the trust and confidence reposed in them by the other stockholders,” stockholders in a close corporation are held to a “standard of fiduciary duty more exacting than
*176
the traditional good faith and inherent fairness standard.”
Donahue
v.
Rodd Electrotype Co, of New England, Inc.,
The jury’s verdict in favor of Puritan on the excess rent claim indicates that they found, at minimum, that Edward “fail[ed] to disclose or make available” information concerning the rent payments. See note 6, supra. Viewing the evidence in the light most favorable to the plaintiffs, we conclude that the jury could have found that the other shareholders had neither knowledge of the rent payments nor the means of acquiring such knowledge. In any event, for the statute of limitations to be tolled pursuant to G. L. c. 260, § 12, it is sufficient that Edward, in breach of his “strict good faith” fiduciary duty as a shareholder in a close corpo *177 ration, Donahue, supra at 593, did not disclose the amount of the rent payments to the other shareholders. 9
3. Corporate opportunity. Edward argues that his nonrenewal of Puritan’s lease did not constitute a misappropriation of a corporate opportunity because, among other things, the “opportunity” was a preexisting property interest of Edward. We agree, and reverse the judgment for Puritan on its misappropriation of a corporate opportunity claim. 10
The determination whether a corporate officer has breached his fiduciary duty by acquiring or diverting a corporate business opportunity for his personal profit “rests fundamentally on the unfairness in the particular circumstances.”
Durfee
v.
Durfee & Canning, Inc.,
Further, Edward is absolved of liability based on the principle that “[w]hen a corporation is unable to avail itself of an opportunity, its employee, officer or director is free to exploit it,”
Energy Resources Corp., Inc.
v.
Porter,
4. Liability under G. L. c. 93A. In a posttrial memorandum of decision, the judge ruled that the defendants had wilfully and knowingly committed unfair and deceptive acts *179 in violation of G. L. c. 93A in locking out Puritan employees without a court order. The judge based this conclusion on his finding that the defendants had (1) leased the premises to Puritan; (2) begun a legal action for possession; and (3) at the time of the lockout, neither returned nor cashed the rent check tendered by Puritan. As a result, Puritan was awarded twice the damages found by the jury against each of the defendants, as well as attorneys’ fees and costs.
The defendants argue that they are not liable to Puritan under G. L. c. 93A, because, among other reasons, the parties were acting as fiduciary participants in a closely held corporation rather than as separate entities in a public market setting. We agree. Accordingly, we reverse the judgment for Puritan on its G. L. c. 93A claim as well as the costs and attorneys’ fees also awarded pursuant to G. L. c. 93. 11
“[T]he unfair or deceptive acts or practices prohibited [under G. L. c. 93A] are those that may arise in dealings between discrete, independent business entities, and not those that may occur within a single company.”
Manning
v.
Zuckerman,
“[I]f [the defendants] committed any unfair or deceptive acts, they necessarily occurred in the context of the parties’ [shareholder] relationship ... or arose out of that relationship . . . and not in an arm’s-length commercial transaction between distinct business entities,” Manning, supra at 11; therefore, G. L. c. 93A, § 11, does not apply. Here, the commercial transaction was anything but arm’s-length. The gravamen of Puritan’s complaint is self-dealing: Edward as company treasurer paid excessive rent to himself as landlord. Although Puritan attempts to cast its G. L. c. 93A complaint solely as one against a commercial landlord, “for charging and accepting rent greatly in excess of that permitted both under its Lease, and at fair rental value rates,” it is clear that, but for the fact that Edward was also the payor, the payee could not have charged and accepted excess rent, and none of the ensuing conflict, including the lockout, would have occurred.
5. The defendants’ counterclaims. At the close of the evidence, Puritan moved for a directed verdict on the defendants’ counterclaim for expenses caused by Puritan’s holdover, on the ground that no evidence of damage from Puritan’s continued occupancy had been presented. After the jury returned a $5,000 verdict in favor of the defendants on their counterclaim, the judge entered judgment notwithstanding the verdict on the counterclaim. The defendants argue that this was improper. We conclude that the evidence was sufficient to support only that portion of the jury’s award that represented the defendants’ claim for unpaid rent.
The jury had evidence that Puritan held over fourteen days into January, and that Puritan had tendered a rental check for $7,500 for that month. Using Puritan’s proffered $7,500 January rental check as a yardstick, the jury could calculate Puritan’s pro rata rent for the fourteen days.
The other evidence regarding expenses incurred by the defendants as a result of the eviction was insufficient to support the remaining portion of the jury’s award. Patricia testified
*181
that she and Edward paid to have damage to the premises repaired and professional movers move out Puritan’s equipment. She never testified to her familiarity with the type of repairs or the reasonableness of the costs. Nor did she testify that the professional movers had been paid by the defendants. “When . . . damages are sought they must be proved and not left, as here, to speculation.”
Snelling & Snelling of Mass., Inc.
v.
Wall,
In sum, we (1) reverse the judgment against Patricia; (2) affirm the judgment against Edward on the claim of excessive rent; (3) reverse the judgment on the misappropriation of a corporate opportunity and the c. 93A claims; (4) reinstate that portion of the jury’s verdict that represents the defendants’ counterclaim for unpaid rent; and (5) affirm the judgment notwithstanding the verdict as to the remaining portion of the defendants’ counterclaim. We remand to the Superior Court for entry of a judgment consistent with this opinion.
So ordered.
Notes
The sum of $132,000 was entered against Edward alone on the misappropriation of a corporate opportunity claim; $373,100 was entered against both Edward and Patricia on the excessive rent claim.
In March of 1986, two of the Puritan principals complained to Patricia that Edward had charged excessive rents. Patricia proposed that Puritan pay “whatever they felt was fair until such time as [Edward’s] health returned.” Puritan assented. The $7,500 tendered by Puritan thus represents their assessment of fair rental value at the time.
The lease, which was admitted in evidence, indicates that Patricia was not a signatory to the lease. There was no evidence to indicate that Patricia either charged or collected the rent throughout the life of the lease; the evidence indicated that only Edward performed these functions. There was no evidence that Patricia owed a fiduciary duty to the corporation.
Puritan claims that we cannot consider the fact that Patricia did not sign the lease, because the defendants did not state that fact as a basis for *172 their motion for directed verdict. That argument is without merit. The issue is the sufficiency of the evidence against Patricia, and the fact she did not sign the lease is a factor to be considered in determining whether Puritan met its burden of establishing that Patricia should be held liable as a principal on the excessive rent claim.
The judge instructed the jury: “If you find that [Edward] failed and breached his fiduciary duty to the corporation by failing to disclose or make available the records of the corporation to the other shareholders, or to provide the other shareholders with relevant information relating to rent payments made by [Edward] on behalf of Puritan, then you cannot find that the other shareholders acquiesced in those corporate decisions made by [Edward], unless you find that the other shareholders had full knowledge of all the essential facts relating to such decisions.”
General Laws c. 260, § 2 (1990 ed.), establishes a six-year statute of limitations for “[a]ctions of contract, other than those to recover for personal injuries, founded upon contracts or liabilities, express or implied
General Laws c. 260, § 12 (1990 ed.), reads: “If a person liable to a personal action fraudulently conceals the cause of such action from the knowledge of the person entitled to bring it, the period prior to the discovery of his cause of action by the person so entitled shall be excluded in determining the time limited for the commencement of the action.”
In
Frank Cooke, Inc.
v.
Hurwitz,
We therefore need not reach Edward’s related contention that Puritan failed to introduce any evidence to support the jury award on this claim.
In view of our conclusion, we need not address the defendants’ additional arguments that (1) their actions did not constitute an unfair or deceptive act or practice; (2) the judge’s assessment of G. L. c. 93A damages is insupportable because Puritan failed to introduce any evidence of damages resulting from the eviction; and (3) the judge’s award of G. L. c. 93A attorney’s fees and costs was unsubstantiated and constituted an abuse of discretion.
Patricia attempted to testify to the various expenses for the work the defendants undertook in connection with Puritan’s eviction. Puritan objected to this testimony and the judge sustained the objection. The defendants do not argue on appeal that the objection was erroneously sustained; therefore, we need not reach this issue. Rather, the defendants argue only that the evidence was sufficient to support the entire $5,000 verdict on their counterclaim.
