Guillermo & Nicolas Diaz · South Florida

XI Realty

Every brokerage can show you what's listed. A father and son who have built, renovated, and financed across this market built their own system to tell you what it's worth.

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STEALGREAT DEALSOLIDPASS
Advisors, not agents

Anyone can show you homes.
We help you understand them.

A traditional brokerage
  • Shows you what you searched for
  • Prices from a handful of nearby comps
  • Taxes and insurance surface during escrow
  • Opportunities found by scrolling the MLS
  • Advice shaped by anecdote and instinct
XI REALTY
Powered by Deal Radar™
  • Reads every listing before you do
    Quality and pricing understood across the whole market — not just what you clicked.
  • Separates value from price
    What a home is worth and what it's listed at are two different numbers. We know both.
  • Surfaces the real cost of ownership
    Tax basis, flood exposure, and insurance drivers known before you offer.
  • Finds what the market overlooks
    Underpriced, mispriced, and softening listings — flagged the moment they move.
  • Puts you in the stronger position
    You negotiate knowing the seller's position, not guessing at it.

Same market. Same listings. The difference is the diligence behind every one of them — before you spend a Saturday touring, or a dollar negotiating.

Deal Radar™ · Intelligence

Every listing gets a verdict.

Two scores on every property — how good the asset is, and how good the deal is — resolved into one verdict. So you know what's worth pursuing before you step inside.

Waterfront · Boca Raton
$2.4M
STEAL
88
Asset Quality
91
Deal Score

Priced ~9% under comp median · deep-water dock · low flood premium.

Equestrian · Wellington
$3.1M
GREAT DEAL
84
Asset Quality
73
Deal Score

12-stall barn · tax basis below market · WEF ride-out.

Luxury · Palm Beach
$8.9M
SOLID
90
Asset Quality
57
Deal Score

Trophy block · priced near comp ceiling · long expected DOM.

Access Deal Radar™

Illustrative figures. Live intelligence on every active & pending listing stays with XI Realty clients.

Who you actually work with

You're not hiring a brokerage.
You're hiring us.

Between us: four decades in this market, 1,200 properties renovated by hand, and a system we built ourselves because no one would sell us one. You work with the two of us directly — every call, every offer.

Nicolas Diaz, Broker & Partner at XI Realty — South Florida luxury real estate advisor.

Nicolas Diaz

Broker & Partner · MBA

South Florida native. A construction-trained eye paired with institutional-grade analysis — he built Deal Radar™.

MBA · Florida StateB.S. Real EstateBuilt Deal Radar™
Guillermo Diaz, Realtor at XI Realty — South Florida luxury real estate advisor.

Guillermo Diaz

Realtor · CDPE

25+ years in this market and 1,200+ properties renovated by hand. He reads value from the inside out.

25+ years1,200+ renovationsCDPE®
Market intelligence · Live

Read the market
before you move.

Full market report
Tri-county absorption
4.8mo
Balanced
Median days on market
52
+8 vs prior month
Median $/sqft · SFH
$347
Flat vs Q4
Listings tracked
715,207
Refreshed continuously

Snapshot medians by city · full tri-county breakdown on the Market Insights page →

Client-exclusive access

See what most buyers never see.

Deal Radar™ is reserved for the people we represent. Give us one address you're weighing and we'll open it up — the price it should be, the risks buried in it, the opportunity everyone else scrolled past. No cost. No obligation.

Private · we don't share your info

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