We shall decide in this case whether a person who signs an installment sales contract for the sole purpose of lending his credit to the purchaser makes the contract of a surety or the contract of a guarantor.
*258 A brief recitation of. the facts will place this issue in proper perspective. In June 1981, John Daniels agreed to purchase a used automobile from Lindsay Cadillac Company (Lindsay). Because John had a poor credit rating, his brother, Seymoure, agreed to cosign the installment sales contract. On June 23, 1981, Seymoure accompanied John to Lindsay and signed the contract on the line designated “Buyer.” John signed the contract on the line designated “Co-Buyer.” Lindsay then assigned the contract to General Motors Acceptance Corporation (GMAC), a company engaged in the business of financing automobiles. In May 1982, GMAC declared the contract in default. After attempting to locate the automobile for several months, GMAC finally recovered the automobile in a “total loss” condition.
GMAC brought this action against the Daniels brothers in the District Court of Maryland sitting in Prince George’s County. Because service of process was never effected upon John, the case proceeded to trial against only Seymoure. Although the District Court found that Seymoure had signed the contract as “Buyer,” it found that he was a guarantor of the contract between John and GMAC. As such, the District Court determined that GMAC had to attempt to bring suit first against John before it could proceed against Seymoure. Dissatisfied with this ruling, GMAC appealed to the Circuit Court for Prince George’s County, which affirmed the decision of the District Court. From that appeal we granted GMAC’s petition for writ of certiorari.
I
GMAC marshals several alternative arguments in support of its position that the District Court was clearly erroneous in finding that Seymoure was a guarantor of the contract between John and itself. In particular, GMAC argues that Seymoure was a surety for his brother in this transaction. We agree.
*259
Maryland law has consistently maintained a distinction between a contract of suretyship and a contract of guaranty.
See, e.g., Kushnick v. Lake Drive Building & Loan Association,
A.
A contract of suretyship is a tripartite agreement among a principal obligor, his obligee, and a surety. This contract is a direct and original undertaking under which the surety is primarily or jointly liable with the principal obligor,
see General Builders Supply Co. v. MacArthur,
Ultimate liability rests upon the principal obligor rather than the surety, but the obligee has remedy against both.
See Dixon v. Spencer,
A contract of guaranty, similar to a contract of suretyship, is an accessory contract.
See Hooper v. Hooper, supra,
B.
A suretyship and guaranty are contractual agreements. Hence, as with all contracts, they are governed by the Maryland law on the interpretation and construction of contracts. It is well settled that Maryland follows the objective law of contracts.
See Aetna Casualty & Surety Co. v. Insurance Commissioner,
With the distinctions between a contract of suretyship and contract of guaranty in mind, and in light of the above principles dealing with the interpretation and construction of contracts, we turn to the case sub judice.
II
Our review of the evidence in this case convinces us that the District Court erred in finding that Seymoure was a guarantor rather than a surety with respect to the installment sales contract. In our judgment the indicia for determining whether a contract is one for suretyship or one for guaranty all point to the existence of a suretyship agreement.
Initially, we note that because the contractual language is clear and unambiguous on its face, we confine our review to the contract itself. Seymoure agreed to purchase the subject automobile by affixing his signature to the installment sales contract on the line designated “Buyer.”
2
The contract clearly stated that all buyers agreed to be jointly and severally liable for the purchase of that vehicle. Therefore, under the objective law of contracts, a reasonable person knew or should have known that he was subjecting himself to primary liability for the purchase of the automobile. In short, although uncompensated sureties are favorites of the law,
see State ex rel. Southern Maryland National Bank v. National Surety Co.,
Seymoure executed the same contract as his brother, thereby making himself a party to the original contract. There is no evidence that Seymoure executed an agreement collateral to and independent of this contract. This fact, standing alone, ordinarily negates the existence of a guaranty. As one court observed, “[i]t is certain that in most cases ‘the joint execution of a contract by the principal and another operates to exclude the idea of a guaranty and that in all cases such fact is an index pointing to suretyship.’ ”
Phoenix Insurance Co. v. Lester Bros.,
Both Seymoure and John signed the contract at the same time. Although not dispositive, this fact tends to establish the existence of a contract of suretyship rather than a contract of guaranty. Furthermore, there are no competent facts indicating that Seymoure expressly agreed to pay for the automobile only upon the default of John. Seymoure also did not qualify his signature in any manner. Thus, by the terms of the contract Seymoure agreed to be primarily and jointly liable with John for the purchase of the automo *264 bile. GMAC was therefore not required to proceed against John in the first instance, and the failure of GMAC promptly to notify Seymoure of the default in payments and of the lapse in physical damage insurance coverage does not constitute a discharge.
Finally, on the facts of this case it is immaterial that the contract did not expressly designate Seymoure as a “surety.” Whether a party has entered into a contract of suretyship or guaranty is to be determined by the substance of the agreement and not by its nomenclature.
See Ford Motor Credit Co. v. Sullivan,
Accordingly, for the reasons stated above, we reverse.
JUDGMENT OF THE CIRCUIT COURT FOR PRINCE GEORGE’S COUNTY REVERSED AND CASE REMANDED TO THE DISTRICT COURT FOR ENTRY OF JUDGMENT IN ACCORDANCE WITH THIS OPINION.
SEYMOURE DANIELS TO PAY THE COSTS.
Notes
. Professor Simpson, in his treatise on suretyship, gives the following distinctions between a surety and guarantor:
The surety’s promise is in form a direct and primary promise to pay the debt of another. It is usually, though not necessarily, made jointly or jointly and severally with the principal and for the same consideration, and gives rise to a primary duty. The guarantor’s promise is separate, is expressly conditioned on the principal’s failure to perform, and gives rise to a secondary duty.
L. Simpson, Handbook on the Law of Suretyship § 14, at 16 (1950).
. Although he signed the line marked "Buyer,” the trial court determined that he was not the buyer of the automobile.
. At trial, Seymoure testified that John had asked him to sign the contract as a "convenience” for the finance company. Seymoure claimed that he did not read the contract because the credit representative at Lindsay told him he was only signing the contract so that Lindsay would approve John’s credit application, and that he would not be held personally liable for the automobile. Seymoure further testified that the credit representative told him that his credit was being relied upon to finance the vehicle. GMAC interposed two seasonable objections to this testimony. Because the contract in the case
sub judice
is clear and unambiguous, and because there are no allegations of fraud, duress, or mistake, the trial court erred in considering this extrinsic evidence because it had the effect of varying, altering, and contradicting the contract.
See Truck Ins. Exch. v. Marks Rentals, Inc.,
. Seymoure directs our attention to the definition of “surety” contained in the Maryland Retail Installment Sales Act, Md.Code (1983 Repl.Vol.), § 12-601(t) of the Commercial Law Article. Under that section, "surety ‘includes a guarantor.’ ” Seymoure, however, advances no argument as to the application of that definition to the issue presented in this case. We therefore decline to express an opinion as to the proper application of that definition in this case.
