
Guillermo & Nicolas Diaz · South Florida
XI Realty
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Every verdict at today's asking price. A father and son who built, renovated and financed across this market built their own system to tell you what a home is worth.
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Three counties. Every active listing.
Filter by county, city, type, price, beds and baths. Results refresh continuously from the MLS.
Explore by lifestyle
Find your home
by how you live.
Waterfront, equestrian, luxury, or new construction — 58 neighborhoods across three counties, each one we know in depth.

Waterfront & Boating
Dockable estates, oceanfront single-family, Intracoastal trophy properties. Bridge clearance and inlet distance scored on every listing.
- Boca Raton Intracoastal
- Las Olas Isles
- Hillsboro Mile
- Jupiter Inlet

Equestrian
Wellington show barns, Loxahatchee acreage, Jupiter Farms ride-out. Stalls, arenas, paddocks, bridle-path access.
- Palm Beach Polo
- Grand Prix Village
- The Acreage
- Jupiter Farms

Luxury
Palm Beach estates, Coral Gables Gables Estates, Hillsboro Beach, Sunny Isles ultra-luxury condos.
- Town of Palm Beach
- Gables Estates
- Hillsboro Beach
- Sunny Isles

New Construction
Old Palm, PGA National, Westlake, Brickell new towers, Aventura's Privé. Builder concessions tracked weekly.
- Old Palm
- PGA National
- Westlake
- Brickell Towers
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 DealRadar™- Reads every listing before you doQuality and pricing understood across the whole market — not just what you clicked.
- Separates value from priceWhat a home is worth and what it's listed at are two different numbers. We know both.
- Surfaces the real cost of ownershipTax basis, flood exposure, and insurance drivers known before you offer.
- Finds what the market overlooksUnderpriced, mispriced, and softening listings — flagged the moment they move.
- Puts you in the stronger positionYou 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.
DealRadar™ · Intelligence
Every listing gets a verdict.
Two scores on every property — how good the asset is, and how good the deal is at today's asking price — resolved into one verdict. So you know what's worth pursuing before you step inside.
Priced ~9% under comp median · deep-water dock · low flood premium.
12-stall barn · tax basis below market · WEF ride-out.
Trophy block · priced near comp ceiling · long expected DOM.
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
South Florida native. A construction-trained eye paired with institutional-grade analysis — he built DealRadar™.

Guillermo Diaz
25+ years in this market and 1,200+ properties renovated by hand. He reads value from the inside out.
Market intelligence · computed daily
Read the market
before you move.
- $/sqft
- $554
- DOM
- 50
- Supply
- 2.8mo
- $/sqft
- $533
- DOM
- 44
- Supply
- 3.5mo
- $/sqft
- $386
- DOM
- 65
- Supply
- 5.3mo
- $/sqft
- $554
- DOM
- 67
- Supply
- 2.2mo
- $/sqft
- $498
- DOM
- 62
- Supply
- 3.0mo
- $/sqft
- $595
- DOM
- 60
- Supply
- 5.5mo
Single-family homes only — condos are a separate market and have their own table. Asking medians from active listings; supply is active inventory over the trailing twelve months of closed sales · full tri-county breakdown on the Market Insights page →

Client-exclusive access
See what most buyers never see.
DealRadar™ is not a product you sign up for. It is the intelligence behind every client we represent, and it stays with them. Tell us who you are and what you're weighing. If we are the right advisory for you, you will see the full read before your first offer.
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- 25 reviews
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