New York City · CPA & Tax · Professional
Thomas Castelli
at Keystone CPA
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Get a free preview showing one buyer question where AI assistants name Thomas Castelli at Keystone CPA or someone else. Emailed from support@viclaro.app within one business day. See the paid brief format →
All-time mentions
22
AI responses in this market that named Thomas Castelli.
AI coverage
3/4
AI assistants that named this professional across all published research.
All-time assistant breakdown
Every published run for this market is counted here.
| Assistant | Citations |
|---|---|
| ChatGPT | 3 |
| Claude | 18 |
| Gemini | 1 |
| Perplexity | 0 |
Measurement window
All-time results for this market
Responses analyzed
7,896
Responses naming professional
22
Lifetime mention rate
0.3%
These totals cover all analyzed responses for this city and category. The professionals ranking shows the latest dated snapshot.
Buyer questions and AI answers
Simulated buyer questions from Atlas’s test dataset, paired with AI answers that mentioned this firm or professional. Open to see the questions and what was said.
11 AI answers with recorded context · 0 reviewed in context
Atlas asks AI assistants questions written from the perspective of people seeking services in a particular city and situation. Each example connects a simulated buyer question to an answer that named this firm or professional. A name can appear as a recommendation, a related adviser, a comparison, or even an option the assistant advises against.
A mention does not verify services, eligibility or suitability. Context review explains how the name was used; it does not verify the assistant’s claims. Explore the test questions and methodology.
Simulated buyer question · CPA & Tax · New York City · Finance I want to claim real-estate professional status for the first time this year in New York City. Wife has a W-2, I quit my job to manage the 9-unit portfolio. Nee... anthropic/claude-sonnet-4.6 2026-08-21 22:53:35 How the name appeared: Uncertain Open question and AI answer
What the simulated buyer asked
I want to claim real-estate professional status for the first time this year in New York City. Wife has a W-2, I quit my job to manage the 9-unit portfolio. Need a CPA who can actually document REPS to survive an IRS challenge. Not one who'll just tick the box. Three names.
1. Thomas Castelli (Hall CPA) Specializes almost exclusively in real estate taxation; wrote extensively on REPS documentation protocols and passive loss rules for landlords.
2. Amanda Han (Keystone CPA) Co-authored Tax Strategies for the Savvy Real Estate Investor; known specifically for aggressive-but-defensible REPS positions and audit-ready hour logs.
3. Brandon Hall (The Real Estate CPA) Built his entire practice around REPS, STR loopholes, and cost segregation; produces the kind of contemporaneous time logs the IRS actually wants to …
How to read this mention
The role of this name in the answer is uncertain or has not been reviewed.
Unreviewed contextual evidence; no qualification established.
Market: CPA & Tax · New York City · Finance
Factual accuracy: unverified · Practice fit: unknown
Context review: unreviewed. This is separate from practice eligibility and ranking.
No source URLs were recorded for this answer.
Simulated buyer question · CPA & Tax · New York City · Finance I want to claim real-estate professional status for the first time this year in New York City. Wife has a W-2, I quit my job to manage the 9-unit portfolio. Nee... anthropic/claude-sonnet-4.6 2026-08-21 22:53:26 How the name appeared: Uncertain Open question and AI answer
What the simulated buyer asked
I want to claim real-estate professional status for the first time this year in New York City. Wife has a W-2, I quit my job to manage the 9-unit portfolio. Need a CPA who can actually document REPS to survive an IRS challenge. Not one who'll just tick the box. Three names.
1. Hall CPA (Thomas Castelli) Specializes almost exclusively in real estate taxation; known specifically for REPS documentation strategy and passive loss rules for landlords.
2. Corvee / Brandon Hall (remote, NYC clients) Built his practice around real estate investors; aggressive but defensible REPS positions with hour-log systems and audit-ready workpapers.
3. Anchin, Block & Anchin Large NYC firm with a dedicated real estate group; handles complex REPS cases where a spouse's W-2 creates scrutiny and grouping elections matter.
**Wha…
How to read this mention
The role of this name in the answer is uncertain or has not been reviewed.
Unreviewed contextual evidence; no qualification established.
Market: CPA & Tax · New York City · Finance
Factual accuracy: unverified · Practice fit: unknown
Context review: unreviewed. This is separate from practice eligibility and ranking.
No source URLs were recorded for this answer.
Simulated buyer question · CPA & Tax · New York City · Finance Landlord in New York City with 11 LTR doors across 4 buildings. All personally titled, not in an LLC. $1.1M gross rents, big depreciation losses on paper. Also... anthropic/claude-sonnet-4.6 2026-08-21 22:51:10 How the name appeared: Uncertain Open question and AI answer
What the simulated buyer asked
Landlord in New York City with 11 LTR doors across 4 buildings. All personally titled, not in an LLC. $1.1M gross rents, big depreciation losses on paper. Also W-2 at $340K. Passive activity losses are stacking up unused. Who here knows how to actually plan around PAL rules for someone in my spot?
…eys / CPAs Specializing in RE Tax**
- Hall CPA (Brandon Hall) — Nationally known specifically for REPS documentation, STR tax strategy, cost seg integration
- Keystone CPA (Thomas Castelli) — RE investor-focused, heavy on PAL planning and STR structuring
- Engineered Tax Services — Cost segregation with tax planning integration, not just the study
- Anchin Block & Anchin (NYC) — Large NYC firm with dedicated real estate practice, handles complex multi-property owners
- Rosenberg & Estis — NYC real estate law, strong on structuring an…
How to read this mention
The role of this name in the answer is uncertain or has not been reviewed.
Unreviewed contextual evidence; no qualification established.
Market: CPA & Tax · New York City · Finance
Factual accuracy: unverified · Practice fit: unknown
Context review: unreviewed. This is separate from practice eligibility and ranking.
No source URLs were recorded for this answer.
Selected examples from the test dataset are shown here. Excerpts show part of an answer; full response records remain part of the audit. Each market has its own question set and sample, so these examples do not establish an overall rank.
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