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  • Primus Group

Keith Marks & Sonia Toth
Realtor, Florida (12 years experience)


Buyer's Agent, Listing Agent, Foreclosure, Short-Sale

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Keith Marks and Sonia Toth comprise part of the team of experts at Primus Investment Group.

Keith Marks had over 25 years experience in the computer industry creating and leading several firms that specialized in the design and implementation of Health Care Information Systems. After moving to Miami Beach in 2007, Keith teamed up with Sonia Toth to specialize in providing expert real estate services to the Miami Beach and surrounding areas. 

Raised in Brazil by a family of real estate professionals and investors, Sonia Toth moved to Los Angeles after achieving her law degree in Brazil and became a U.S. citizen 30 years ago.  Sonia Toth started her high-end real estate career over 15 years ago when she fell in love with South Beach. Her new career took off not just as a real estate professional but also as an investor in the affluent real estate market.

Members of the National Association of Realtors, Florida Association of Realtors, Realtor Association of Greater Miami and the Beaches, and Certified Luxury Homes Market Specialist.

Understanding and meeting the needs of buyers and sellers is a hallmark of our services and success whether for a first time buyer or a seasoned investor.

Listings & Sales
For Sale
For Rent
Active Listings (1)
Property Address
Bed / Bath
    Past Sales

    No sales history on Zillow

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    Professional Information
    Primus Investment Group, Inc.
    500 South Pointe Drive, Suite 150
    Miami Beach, FL  33139
    (786) 999-5898Click to view
    (786) 999-5898Click to view
    Screen name:
    Primus Group
    Member since:
    • 3251577 (Florida)
    Portuguese, Spanish
    Digs: Home Design Ideas