At the conclusion of plaintiff’s evidence and again at the close of all evidence, defendants moved for a directed verdict pursuant to G.S. 1A-1, Rule 50. These motions were denied, and defendants now assign error to these rulings. By introducing evidence, defendants waived their first motion, Overman v. Products Co., 30 N.C. App. 516, 227 S.E. 2d 159 (1976), and their assignment of error directed to the denial of that motion will not be considered on this appeal.
 Plaintiff contends that defendants are not entitled on this appeal to rely upon their assignment of error directed to the denial of their second motion, made at the close of all evidence, because in making that motion defendants failed to “state the specific grounds therefor” as required by G.S. 1A-1, Rule 50(a). Plaintiff correctly points out that this requirement is mandatory. Wheeler v. Denton, 9 N.C. App. 167, 175 S.E. 2d 769 (1970). “However, the courts need not inflexibly enforce the rule when the grounds for the motion are apparent to the court and the parties.” Anderson v. Butler, 284 N.C. 723, 729, 202 S.E. 2d 585, 588 (1974). In the present case, when defendants made their first motion for a directed verdict at the conclusion of plaintiff’s evidence, they stated that they did so “for the reason that Plaintiff has not made a case sufficient to be submitted to the jury in that Plaintiff’s evidence shows conclusively that the transaction alleged does not constitute a mortgage but rather a deed with option to purchase and there was no evidence sufficient to be submitted on the issue of a constructive trust.” When defendants again moved for a directed verdict at the close of all of the evidence, it must have been apparent to the court and to the plaintiff that their motion was a renewal of the motion previously made, this time challenging the sufficiency of all of the evidence on the grounds previously stated. Hence, defendants’ failure to restate the specific grounds for their motion will not be deemed fatal, and we will review the questions presented by defendants’ assignment of error directed to the denial of their motion for directed verdict made at the close of all of the evidence.
 At the outset we note that there was no evidence to support plaintiff’s claim for relief based on his allegations that a fiduciary relationship existed between him and his brother and that defend*465ants hold title in trust for the benefit of the plaintiff. On the contrary, all of the evidence shows that plaintiff and his brother, both of whom were adult businessmen, dealt with each other at arm’s length throughout, each seeking to obtain the best bargain which his needs and circumstances would permit. All of the evidence shows that the two brothers had little direct contact, one living in North Carolina and the other in Michigan. The transaction occurred at plaintiff’s, rather than at defendants’, instance. All instruments involved were prepared by plaintiff’s attorney, and plaintiff had ample opportunity to read and understand them before they were signed. There was no evidence of any actual fraud or undue influence by anyone, and the family relationship which existed between plaintiff and his brother by itself raises no presumption of fraud or undue influence. Walters v. Bridgers, 251 N.C. 289, 111 S.E. 2d 176 (1959); Cornatzer v. Nicks, 14 N.C. App. 152, 187 S.E. 2d 385 (1972). There was no evidence that plaintiff conveyed title to his brother under any express parol trust that it should be held for plaintiff’s benefit, nor would such evidence, if presented, have availed to sustain plaintiff’s claim, for a grantor may not impose a parol trust for his benefit on land which he conveys by deed purporting to vest absolute title in the grantee. Willetts v. Willetts, 254 N.C. 136, 118 S.E. 2d 548 (1961).
Nor was there any evidence to justify a court of equity in imposing a constructive trust in the present case. Describing a constructive trust, Lake, J., speaking for our Supreme Court, said:
A constructive trust is a duty, or relationship, imposed by courts of equity to prevent the unjust enrichment of the holder of title to, or of an interest in, property which such holder acquired through fraud, breach of duty or some other circumstance making it inequitable for him to retain it against the claim of the beneficiary of the constructive trust. . . . [A] constructive trust is a fiction of equity, brought into operation to prevent unjust enrichment through the breach of some duty or other wrongdoing. It is an obligation imposed irrespective of the intent with which such party acquired the property, and in a well-nigh unlimited variety of situations. [Citations omitted.] Nevertheless, there is a common, indispensable element in the many types of situations out of which a constructive trust is deemed to arise. This common element is some fraud, breach of duty or other wrongdoing *466by the holder of the property, or by one under whom he claims, the holder, himself, not being a bona fide purchaser for value.
Wilson v. Development Co., 276 N.C. 198, 211-212, 171 S.E. 2d 873, 882 (1970). (Emphasis added.) As above noted, there was no evidence in the case now before us of any actual fraud, breach of duty, or other wrongdoing by the defendants, and the family relationship gave rise to no presumption of any. Therefore, the court erred in failing to grant defendants’ motion for a directed verdict as to plaintiff’s claim for relief based on his allegations that defendants hold title in trust for his benefit.
 We now turn to plaintiff’s claim for relief based on his allegations that at the time the deed and contract providing plaintiff an option to repurchase were executed and delivered the relationship of debtor and creditor existed between him and his brother, Firth, and that the deed and contract together were intended to constitute and did constitute a mortgage. Cases involving similar arrangements, but each with its own particular factual background, have many times been before the courts of this and other jurisdictions. See Hardy v. Neville, 261 N.C. 454, 135 S.E. 2d 48 (1964); Ricks v. Batchelor, 225 N.C. 8, 33 S.E. 2d 68 (1945); Ferguson v. Blanchard, 220 N.C. 1, 16 S.E. 2d 414 (1941); O'Briant v. Lee, 214 N.C. 723, 200 S.E. 865 (1939); Watkins v. Williams, 123 N.C. 170, 31 S.E. 388 (1898); King v. Kincey, 36 N.C. 187 (1840); Trust Co. v. Morgan-Schultheiss and Poston v. Morgan-Schultheiss, 33 N.C. App. 406, 235 S.E. 2d 693 (1977); Annot., 79 A.L.R. 937 (1932), supplemented in Annot., 155 A.L.R. 1104 (1945). Long ago, Chief Justice John Marshall, dealing with the distinction between a mortgage and a sale with option to repurchase, said:
To deny the power of two individuals, capable of acting for themselves, to make a contract for the purchase and sale of lands defeasible by the payment of money at a future day, or, in other words, to make a sale with a reservation to the vendor of a right to repurchase the same land at a fixed price and at a specified time, would be to transfer to the Court of Chancery, in a considerable degree, the guardianship of adults as well as of infants. Such contracts are certainly not prohibited either by the letter or the policy of the law. But *467the policy of the law does prohibit the conversion of a real mortgage into a sale. And as lenders of money are less under the pressure of circumstances which control the perfect and free exercise of the judgment than borrowers, the effort is frequently made by persons of this description to avail themselves of the advantage of this superiority, in order to obtain inequitable advantages. For this reason the leaning of courts has been against them, and doubtful cases have generally been decided to be mortgages. But as a conditional sale, if really intended, is valid, the inquiry in every case must be, whether the contract in the specific case is a security for the repayment of money or an actual sale.
Conway v. Alexander, 11 U.S. (7 Cranch) 218, 236-37, 3 L.Ed. 321, 328 (1812).
Dealing with the same problem, Devin, J. (Later C.J.) speaking for our own Supreme Court in Ferguson v. Blanchard, supra, at 7-8, 16 S.E. 2d at 418, said:
It is true that when a debtor conveys land to a creditor by deed absolute in form and at the same time gives a note or otherwise obligates himself to pay the debt, and takes from the grantee an agreement to reconvey upon payment of the debt, the transaction is a mortgage. Robinson v. Willoughby, 65 N.C. 520. But if the agreement leaves it entirely optional with the debtor whether he will pay the debt and redeem the land or not, and does not bind him to do so, or continue his obligation to pay, the relationship of mortgagor and mortgagee may not be held to continue unless the parties have so intended. . . .
Whether any particular transaction amounts to a mortgage or an option of repurchase depends upon the real intention of the parties, as shown on the face of the writings, or by extrinsic evidence, and the distinction seems to be whether the debt existing prior to the conveyance is still left subsisting or has been entirely discharged or satisfied by the conveyance. If no relation whatsoever of debtor and creditor is left subsisting, the transaction is a sale with contract of repurchase, since there is no debt to be secured.
*468  From the foregoing authorities, it is apparent that the crucial problem in a case such as is now before us is to ascertain the true intention of the parties at the time of their transaction. If in the present case plaintiff and his brother intended to create a debt which plaintiff was obligated to repay to his brother, with the land being conveyed merely as security, then the transaction was a mortgage. If, on the other hand, they did not intend to create any debt, there would have then been no debt to secure, and the transaction would have been no more than what it purported to be on its face, ie., an absolute sale with an option granted back to the plaintiff to repurchase within a specified time. In ascertaining the real intention of the parties, however, the simple declaration of the plaintiff, who was grantor in the deed, will not suffice to show that the parties intended to create a mortgage. Quoting from, earlier cases, our Supreme Court, in O’Briant v. Lee, supra at 731, 200 S.E. at 870, noted that:
The intention [to create a mortgage] must be established, not by simple declaration of the parties, but by proof of facts and circumstances dehors the deed inconsistent with the idea of an absolute purchase; otherwise, the solemnity of deeds would always be exposed to the “slippery memory of witnesses.”
Thus, although plaintiff in the present case repeatedly testified that the transaction was intended to be a loan and that the land was conveyed to his brother for the sole purpose of securing the payment of that loan, to withstand defendants’ motion for directed verdict it was necessary for plaintiff to present more than his own simple declaration and to present proof of facts and circumstances dehors the deed inconsistent with the idea of an absolute purchase. This he failed to do.
 The grantee in an absolute deed normally takes immediate possession of the property. A mortgagee normally does not. Here, plaintiff admitted that he completely surrendered possession and control of the farm to his brother. Plaintiff testified that “[o]n the day that I gave him the deed I gave him possession of the farm,” and he did not dispute defendants’ testimony that after 1961 defendants collected and retained all of the rents, paid all taxes on the farm, and made all necessary repairs on the buildings. Plaintiff’s surrender of possession and control as well as his long *469acquiescence in defendants’ possession of the farm is more consistent with an absolute sale than a mortgage.
In a mortgage transaction, the amount of money loaned is usually substantially less than the fair market value of the property given as security. In a sale, the amount paid for the property is usually more nearly equivalent to its fair value. In the present case, witnesses gave as their estimates of fair market value of the entire farm in 1961 figures ranging from $45,000.00 to $100,000.00, but of the six estimates of value, only one was greater than $75,000.00. Plaintiff himself testified that in his opinion the fair market value of the entire farm in 1961 was $75,000.00, but he admitted that he had valued it for inheritance tax purposes at $50,000.00, a figure entirely consistent with the sale of his one-half portion for $25,000.00.
Plaintiff contends that certain language used by defendant Firth, while testifying, indicates the existence of a debt. We do not agree. In referring to the expiration of the option to repurchase, the defendant stated that plaintiff had a certain period of time within which to “pay the money off” and to “pay me back.” We find these expressions as consistent with an absolute deed with option to repurchase as they are with the existence of a mortgage debt. Plaintiff also points to the testimony of his witness, Y. T. Jernigan, who had leased the farm in 1961, that he had “heard Firth say that he loaned George Twenty-Five Thousand Dollars.” However, the witness did not testify when, or in what connection, he had heard this statement made. While this bit of evidence is inconsistent with the idea of a sale, it is of such scant probative value as to be insufficient, in itself, to carry plaintiff’s case to the jury.
While all of the evidence of the circumstances surrounding the transaction tend to negate plaintiff’s allegation that the deed and option constituted a mortgage, it is perhaps even more important that plaintiff admitted on the stand that he was not obligated to exercise the option. As above noted, the inquiry in this case focuses on the existence of a debt. If there is a subsisting debt, then plaintiff is obviously under a duty to repay the debt, and the transaction may properly be characterized as a mortgage. On the other hand, there is no debt, and thus no mortgage, if plaintiff is not obligated to repay. In this connection, on cross-examination plaintiff testified:
*470I knew and understood the terms of my option and that I could exercise my rights anytime during the period of time. I also knew that I had the right to do it or not to do it at my own choice and I tried to do all I could to get it done. [Emphasis added.]
The effect of this testimony is an admission that plaintiff was not obligated to repay defendant, thereby negating the existence of a debt.
 In our opinion, and we so hold, the court should have granted defendants’ motion for a directed verdict made at the close of all the evidence. We may not, however, direct entry of judgment in accordance with the motion. Defendants did not move in accordance with Rule 50(b)(1) for judgment notwithstanding the verdict, nor did the trial judge on his own motion grant, deny or redeny the motion in accordance with Rule 50(b)(1). Under these circumstances, Rule 50(b)(2) expressly provides that the appellate court, on finding that a trial judge should have granted a motion for directed verdict made at the close of all the evidence, may not direct entry of judgment in accordance with the motion. Britt v. Allen, 291 N.C. 630, 231 S.E. 2d 607 (1977).
We do not pass on defendants’ remaining assignments of error, which are primarily directed to the court’s instructions to the jury and some of which appear to have merit, since in any event this case will be remanded to the superior court for a new trial at which the errors complained of are not likely to occur.
Upon a new trial, defendants will have the opportunity to present evidence in support of their defense of laches. See Taylor v. City of Raleigh, 290 N.C. 608, 227 S.E. 2d 576 (1976); Teachey v. Gurley, 214 N.C. 288, 199 S.E. 83 (1938); McRorie v. Query, 32 N.C. App. 311, 232 S.E. 2d 312 (1977).
Judges MARTIN and WEBB concur.