Foreign homeowners in Los Cabos lose thousands of dollars each year to construction fraud, fake union shakedowns, and contractors who vanish after collecting deposits. Under Mexican labor law, which strongly favors workers, property owners without written contracts have almost no legal recourse when disputes arise. The problem is persistent, well documented in local expat communities, and largely preventable with proper vetting and paperwork.
Mexican Labor Law Favors Workers Over Property Owners
The legal landscape in Mexico creates specific vulnerabilities for foreigners who hire construction help informally. Mexico’s Federal Labor Law (Ley Federal del Trabajo) presumes an employment relationship exists when someone performs work for another party. So a day laborer hired to tile a bathroom can later claim to be a long-term employee entitled to severance, vacation pay, a Christmas bonus (known as aguinaldo), and social security contributions.
Without a written contract specifying the scope and duration of work, the burden of proof falls on the homeowner. Mexican labor courts (Juntas de Conciliación y Arbitraje) have historically ruled in favor of workers in these ambiguous cases. A homeowner who paid a crew $5,000 USD for a two-week remodel could face an additional $3,000 to $8,000 USD in retroactive benefits claims, depending on the number of workers and the period they allege employment.
This is not hypothetical. Expat Facebook groups for Los Cabos, including “Cabo Living” and “SJD/CSL Expats,” regularly feature posts from homeowners blindsided by such claims. The pattern repeats: informal hire, no contract, a dispute over pay or quality, then a legal claim filed at the labor board.
Fake Union Shakedowns Target Active Construction Sites
A second common scheme involves individuals claiming to represent a sindicato, or labor union. They arrive at active job sites, often in groups, and demand payment for union fees or threaten to shut down the project. They use legal-sounding language and reference Mexico’s labor code to intimidate foreign property owners who may not know their rights.
Legitimate unions do operate in Mexico’s construction sector. But in Los Cabos, many of these site visits are from unaffiliated groups running extortion schemes. The state of Baja California Sur has no mandatory union enrollment requirement for residential construction projects. Homeowners who encounter these demands should ask for official union registration documents (toma de nota) and consult an attorney before paying anything.
The third and most straightforward scam is deposit theft. A contractor requests 30% to 50% of the project cost upfront for materials, then disappears or produces substandard work. In the Los Cabos real estate market, where home renovation projects commonly range from $20,000 to $150,000 USD, a 40% deposit on a midsize kitchen remodel can mean $15,000 or more at risk before a single tile is laid.
Profeco Offers Free Conciliation Before Litigation
Homeowners who believe they have been defrauded can file a complaint with Profeco, Mexico’s federal consumer protection agency. Profeco operates a regional office in La Paz and accepts complaints in person or online through its portal at gob.mx/profeco. There is no filing fee.
The process begins with a formal complaint (queja) that includes the homeowner’s identification, a description of the dispute, and supporting evidence. Profeco then schedules a conciliation hearing, typically within 30 to 45 days. Both parties present their case, and a Profeco mediator attempts to negotiate a resolution. Contractors often settle at this stage to avoid escalation.
If conciliation fails, the homeowner can pursue a civil lawsuit for breach of contract in local courts. This requires a Mexican attorney (abogado) licensed in Baja California Sur. Court proceedings can take 12 to 24 months and cost $3,000 to $10,000 USD or more in legal fees. Documentation is essential at every stage: contracts, receipts, photographs of defective work, inspection reports, and written communications including WhatsApp messages all serve as admissible evidence.
Five Contract Elements Required Under Mexican Civil Law
Under the Civil Code of Baja California Sur, a valid construction contract should include five key elements. First, the full legal names and addresses of both parties, including the contractor’s RFC (Mexico’s tax identification number). Second, a detailed scope of work with materials specifications. Third, a timeline with start and completion dates. Fourth, a payment schedule tied to milestones, not calendar dates. Fifth, a clause specifying penalties for delays or abandonment.
Legal experts also recommend including a clause that identifies the workers as independent contractors (prestadores de servicios), not employees. This distinction, when properly documented, helps protect against retroactive labor claims. The contract should be signed before a notary public or at minimum have witnesses sign each page.
Profeco’s regional office in La Paz is located at Boulevard Agustín Olachea. Homeowners can also call Profeco’s national consumer hotline at 800-468-8722 for guidance on filing complaints.

