Comparison

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Because every portal follows the same fifteen-section outline, the comparison is genuinely like-for-like rather than a collage of whatever each government happens to publish.

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Comparison of selected legal systems
Attribute	ParaguayReviewed	MexicoReviewed	MonacoReviewed	OmanReviewed
Legal family	Civil law	Civil law	Civil law	Mixed (civil law and Islamic law)
System of government	Unitary presidential republic	Federal presidential republic	Constitutional hereditary monarchy	Unitary absolute monarchy
Constitution	Constitution of the Republic of Paraguay	Political Constitution of the United Mexican States	Constitution of the Principality of Monaco	Basic Law of the State
In force since	1992	1917	1962	1996
Capital	Asunción	Mexico City	Monaco	Muscat
Official languages	Spanish, Guaraní	Spanish, Nahuatl, Yucatec Maya	French	Arabic
Currency	Paraguayan guaraní (PYG)	Mexican peso (MXN)	Euro (EUR)	Omani rial (OMR)
Population	6,900,000	130,000,000	39,000	4,600,000
Division of powers	Unitary with seventeen departments and the capital district, each with an elected governor and departmental board holding administrative and limited fiscal competence. Legislative power is national.	Federal. Powers not expressly granted to the union are reserved to the 32 states (Article 124). States run their own civil, family and criminal-enforcement codes, but criminal procedure, labour and commercial law were federalised to produce single national codes.	A unitary state of about two square kilometres with a single commune. Legislative power is exercised jointly by the Prince and the National Council; executive power belongs to the Prince, exercised through the Minister of State and the Government Council; judicial power is delegated by the Prince to the courts, with the Tribunal Suprême acting as both constitutional and supreme administrative court.	Unitary. Eleven governorates headed by appointed governors, with municipal councils holding advisory functions over local services. No legislative competence exists below the national level.
How law is made	Bills may start in either chamber and must pass both. The President may object in whole or part; Congress overcomes an objection by absolute majority in both chambers. Constitutional amendment requires a two-thirds vote of each chamber and ratification by referendum; wholesale reform requires a constituent assembly.	Bills may be introduced by the President, either chamber, state legislatures or by citizens with 0.13% of the electoral roll. Both chambers must pass an identical text; the President may veto, and Congress overrides with two-thirds of each chamber. Constitutional amendments need two-thirds of Congress plus a majority of state legislatures (Article 135).	A bill may be initiated by the Prince or proposed by the National Council. Government bills are laid before the Council, examined in committee and voted; adoption requires the agreement of both the Prince and the Council. The Prince then promulgates the law by sovereign ordinance and it is published in the Journal de Monaco.	Draft legislation is prepared by ministries and the Council of Ministers, may be referred to the Council of Oman for review, and takes effect on the Sultan's signature and publication in the Official Gazette. The Majlis al-Shura may propose legislation and question ministers, and its role was modestly strengthened after 2011, but it cannot enact or block a royal decree.
Legal profession	A law degree and registration of the title with the Supreme Court, which maintains the roll and exercises discipline. Bar membership is voluntary. Because both Spanish and Guaraní are official, courts must provide interpretation, and practitioners outside Asunción are commonly bilingual.	A law degree plus a cédula profesional from the Education Ministry licenses practice; there is no compulsory bar examination or single mandatory bar, which distinguishes Mexico from most of the region. Notaries public are a separate, strictly limited state-appointed profession with exclusive competence over real estate and company deeds.	A small bar of avocats-défenseurs, avocats and avocats stagiaires, organised as the Ordre des Avocats, with admission requiring Monegasque nationality preference, a law degree and a traineeship. French avocats may appear in specified circumstances. Notaries are appointed by sovereign ordinance and are few in number.	Advocacy is regulated by the Ministry of Justice and Legal Affairs; Omani nationality is required for rights of audience, and foreign lawyers practise as consultants within licensed firms. Pleadings are in Arabic. Judges are appointed by royal decree on the recommendation of the Supreme Judicial Council. Notarisation is required for real property dispositions, and land registration is administered by the Ministry of Housing and Urban Planning.

A comparison table flattens nuance by design. Where a difference matters to a decision you are making, open both portals and read the section in full — the constitutional detail behind a one-line summary is often the part that governs the outcome.