Guam Omnibus Opportunities Act

Directs the Administrator of General Services, with specified exceptions, to: (1) notify the Government of Guam of any excess U.S. real property (including property within the Guam National Wildlife Refuge) in Guam; and (2) transfer such property to the Government of Guam, provided the latter notifies the Administrator of its intention to acquire it (thus granting the Government of Guam the right-of-first refusal to such property).

Amends the Compact of Free Association Act of 1985 to revise certain reporting requirements with respect to the impact of the Compact on U.S. areas to authorize the Governor of any of the U.S. territories or commonwealths or the State of Hawaii to report annually to the Secretary of the Interior (currently, the President must report to Congress) with respect to the impacts of the compacts of free association on the Governor's respective jurisdiction.

Declares that the freely associated states of the Republic of the Marshall Islands, the Federated States of Micronesia, and the Republic of Palau and their citizens shall remain eligible for all U.S. Federal programs, grant assistance, and services to the same extent that such programs, grant assistance, and services are provided to States and U.S. citizens.

Amends the Housing Community Development Act of 1980 to revise the conditions for making assisted housing assistance available to a resident alien to declare that such alien may be a lawful resident in the United States and its territories and possessions (under the Compacts of Free Association between the Government of the United States and the Governments of the Marshall Islands, the Federated States of Micronesia, and Palau). Provides that any alien within Guam shall not be entitled to a preference in receiving such assistance over any U.S. citizen or national resident therein.