The Government Code classifies cities as either "general law cities" (cities organized under the general law of California) or "chartered cities" (cities organized under a charter). (Gov. Code, 34100, 34101, 34102; see also First Street Plaza Partners v. City of Los Angeles (1998) 65 Cal. App. 4th 650, 660 [76 Cal. Rptr. 2d 626]; South Bay Senior Housing Corp. v. City of Hawthorne (1997) 56 Cal. App. 4th 1231, 1235-1236 [66 Cal. Rptr. 2d 99].) The powers of a general law city include " 'only those powers expressly conferred upon it by the Legislature, together with such powers as are "necessarily incident to those expressly granted or essential to the declared object and purposes of the municipal corporation." The powers of such a city are strictly construed, so that "any fair, reasonable doubt concerning the exercise of a power is resolved against the corporation." (Martin v. Superior Court (1991) 234 Cal. App. 3d 1765, 1768 [286 Cal. Rptr. 513].) The City is a general law city and, as such, it must comply with state statutes that specify requirements for entering into contracts. (See 34000 et seq.; South Bay Senior Housing Corp. v. City of Hawthorne, supra, 56 Cal. App. 4th at pp. 1235-1236.) "A contract entered into by a local government without legal authority is 'wholly void,' ultra vires, and unenforceable." ( Midway Orchards v. County of Butte (1990) 220 Cal. App. 3d 765, 783 [269 Cal. Rptr. 796], quoting Dynamic Ind. Co. v. City of Long Beach (1958) 159 Cal. App. 2d 294, 299-300 [323 P.2d 768].)