
Get to know Robert Guggenheim Tomasello
Realtor
As the trusted real estate advisor for my clients, I understand that selling and/or buying a home is complex and deeply personal. There is also a lot at stake financially and personally. This perspective on the process, and the responsibility felt towards my clients, drives me to be a true expert at the job. I take pride in offering the toughest of negotiating skills to get you top dollar with the most favorable terms and/or the lowest and best p...
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Robert Guggenheim Tomasello's listings & sales (76)
For Sale (1)
Address | Bed/Bath | Listing price |
|---|---|---|
![]() 18350 Sierra Dr Sonoma, CA 95476
| 3 Bed, 2 Bath | $1,450,000 |
Sold (75)
Address | Sold date | Closing price | Represented | Flag Sale |
|---|---|---|---|---|
| 10/14/2025 | $1,700,000 | Buyer | ||
| 9/30/2025 | $159,950 | Buyer | ||
| 8/25/2025 | $877,000 | Seller | ||
| 8/19/2025 | $2,250,000 | Buyer | ||
| 8/1/2025 | $462,000 | Buyer |
Robert Guggenheim Tomasello's reviews (29)
Write a review- Highly likely to recommend||5.05.0
10/14/2025 - amandairish5
Bought a home in 2025.Local knowledgeProcess expertiseResponsivenessNegotiation skillsRob was amazing to work with. Super knowledgeable, never put any pressure on us, and a great negotiator. I don't think we would've had a successful offer on our house without him! Highly recommend. - Highly likely to recommend||5.05.0
10/3/2025 - ceckert14
Bought a Single Family home in 2025 in Guerneville, CA.Local knowledgeProcess expertiseResponsivenessNegotiation skillsWe could not have asked for a better resource than Rob and Chris at EV. Rob has a wealth of knowledge of the Sonoma county market, and was incredibly patient with us as first time home buyers. Thank you Rob! - Highly likely to recommend||5.05.0
8/4/2025 - zuser20170823093252546
Bought a Multiple Occupancy home in 2025 in Sonoma, CA.Local knowledgeProcess expertiseResponsivenessNegotiation skillsWorking with Robert Tomasello to find our new home and property in Sonoma was a fantastic experience. He made what could have been a stressful process feel easy and enjoyable. From day one, he was completely in tune with what my husband and I wanted.... - Highly likely to recommend||5.05.0
5/2/2025 - alison m wright
Bought a Single Family home in 2025 in Sebastopol, CA.Local knowledgeProcess expertiseResponsivenessNegotiation skillsRob is the best! He was so supportive as I got to know the market and narrowed in on what I was really looking for. It was so easy to communicate with him, and I knew I could count on his responsiveness Ultimately, he beat out multiple offers to get... - Highly likely to recommend||5.05.0
4/18/2025 - katherinetempest22
Bought a Single Family home in 2025 in Sonoma, CA.Local knowledgeProcess expertiseResponsivenessNegotiation skillsAs first time home buyers, Rob was great to work with and we felt very guided throughout the process of buying a home. Rob was there to answer any questions along the way as well as being professional, flexible and accommodating. Rob was always looki...










