Trusted metro detroit realtors since 1935

At Sine & Monaghan Realtors, we help buyers and sellers throughout Metro Detroit and Southeast Michigan, including Grosse Pointe, Royal Oak, Birmingham, St. Clair Shores, Harrison Township, Algonac, and waterfront communities along Lake St. Clair. Our experienced agents specialize in luxury homes, waterfront properties, family homes, condos, and investment real estate with personalized service and deep local market knowledge.

Whether you are buying your first home, relocating, searching for lakefront property, or preparing to sell, our team is committed to helping you navigate every step of the real estate process.

Frequently asked questions

  • Sine & Monaghan Realtors serves buyers and sellers throughout Metro Detroit and Southeast Michigan, including Grosse Pointe, Grosse Pointe Farms, Grosse Pointe Park, Grosse Pointe Woods, Grosse Pointe Shores, Royal Oak, Birmingham, Berkley, St. Clair Shores, Harrison Township, Algonac, St. Clair, and surrounding communities.

  • Metro Detroit offers a wide variety of homes including historic properties, luxury estates, waterfront homes, condos, new construction, suburban family homes, and investment properties. Whether you are searching for walkable downtown living or lakefront property, our agents can help you find the right fit.

  • When purchasing a waterfront property, buyers should consider water depth, seawall condition, dock access, flood insurance requirements, canal width, and boating accessibility. Our waterfront specialists help buyers navigate the unique aspects of Lake St. Clair and St. Clair River real estate.

  • The Metro Detroit housing market varies by community, price range, and property type. Areas like Grosse Pointe, Birmingham, Royal Oak, and waterfront communities often experience strong buyer demand and competitive market conditions. Our local agents provide up-to-date market guidance to help buyers and sellers make informed decisions.

  • Established in 1935, Sine & Monaghan Realtors has decades of experience serving Metro Detroit and Southeast Michigan. With four office locations, local market expertise, and a strong reputation in waterfront and luxury real estate, our team is committed to providing personalized service and trusted guidance throughout the buying and selling process.

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18412 Mack Avenue, Grosse Pointe Farms, MI, 48236