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Cornerstone Professional Advisor Services is a investment adviser based in Garden City, NY, that holds a 78.4/100 Fidelon TransparencyScore (16th percentile among SEC-registered advisers), with 5 registered advisors. Score based on public SEC and FINRA filings.

78.4Transparency Score
Bottom16%
of SEC-registered advisers

Cornerstone Professional Advisor Services

A registered investment adviser with a clean regulatory record.

9 Endo Blvd., Garden City, NY, 11530
Investment AdviserFiduciary
Prep Kit

Fidelon Fact Sheet

Cornerstone Professional Advisor Services, LLC is an SEC-registered investment adviser in Garden City, NY. It has 5 registered advisors. It manages $110.3 million across 456 client accounts. It charges a percentage of the money it manages for you, and it can also earn commissions when it sells you a product. Its services include financial planning, portfolio management, educational seminars and investment newsletters. Its record shows no customer complaints, regulatory actions or fines.

78.4FairBottom 16% of SEC-registered advisers
How they're paidNo advisory commissions, but they also sell products.
Asset-based fees
Duty to youLegally required to put your interests first.
Registered adviser · fiduciary
Assets under managementAcross 456 client accounts.
$110.3M
Firm size
5 advisors
Who holds your moneyThe firm reports it does not hold client funds.
No custody reported
Regulatory recordNo customer complaints, regulatory actions, or fines on file.
Clean — 0 disclosures
Based on live filings from SEC Form ADV and FINRA BrokerCheck. Scored using Fidelon's published methodology. Data as of Mar 2026

Peer Context

National

9,058th of 10,815

SEC-registered advisers

Bottom 16%

State

867th of 1,070

SEC-registered advisers in NY

Bottom 19%

Local

13th of 16

SEC-registered advisers in Garden city, NY

Bottom 19%

Key Findings

Strengths

  • Registered as investment adviser with fiduciary obligation
  • Clean regulatory record — no disclosures, arbitrations, or fines

Things You Should Know

  • Its brochure names payments received for referring clients elsewhere or an affiliated adviser or private fund as conflicts, but it does not name this conflict where the SEC requires, explain what this arrangement tempts the firm to do, or say what the firm is paid for it. Ask whether the firm is paid when it sends you to another company, and by whom.Items 10, 11, 12.B and 14

Conflict Audit

Conflict AuditCaution

Our analysis identified 2 potential conflicts of interest in regulatory filings.

✓
Not registered as broker-dealer
✓
No commissions on advisory accounts
⚠
Receives compensation from sources other than client fees
✓
No related-party custodian
✓
No performance-based fees
⚠
Also sells insurance — can earn money beyond advisory fees

Source: Form ADV Part 1, Items 6-8; Part 2A, Items 10-14

What this firm says about how it gets paid

“Advisory fees are asset based, so the more assets you have in your advisory account, the more you will pay us and thus we have an incentive to increase those assets in order to increase our fee, although our fees as a percentage may go down.”
“our representatives are also licensed insurance agents and may recommend life or annuity products for which they will be paid a commission.”

Source: the firm’s own Form CRS, filed 2025-03-21 — quoted directly

Regulatory Events

Advisor Roster

5 advisors

AdvisorScoreGrade
Wilkins Henry Montgomery III——
Steven Madonna——
Holly Ann Lundberg Ms——
Alfonso George Figliolia——
Michael Steven Welger——

Marketing Brands1 brand

Names advisors at this firm use when marketing to clients

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Frequently Asked Questions

What does the TransparencyScore measure?

The TransparencyScore measures how clearly and completely an advisor or firm discloses important information in their regulatory filings — things like fees, conflicts of interest, disciplinary history, and business practices. A higher score means better disclosure quality, not better investment performance.

Where does this data come from?

All data comes from public regulatory filings: SEC Form ADV (Parts 1, 2, and 3), FINRA BrokerCheck, and the SEC's Investment Adviser Public Disclosure (IAPD) database. These are official filings that firms and advisors are legally required to submit.

Does a low score mean they're a bad advisor?

Not necessarily. A low score means the firm's public filings are less transparent — they may use vague language about fees, skip details about conflicts, or have a more complex regulatory history. Some excellent advisors work at firms with poor disclosure practices. The score measures the filing, not the person.

How often is this data updated?

Fidelon refreshes data from SEC and FINRA sources on a regular schedule. Form ADV filings are updated annually by firms (with amendments throughout the year), and BrokerCheck data is updated as events are reported. Scores are recalculated after each data refresh.

Can an advisor or firm improve their score?

Yes. Scores are based on what's in public filings. A firm that rewrites its ADV brochure in clearer language, discloses conflicts more specifically, or resolves outstanding regulatory issues will see its score improve at the next refresh. The incentive structure is intentional.

Data Sources

SEC Form ADV Part 1 — Filed Mar 2026SEC Form ADV Part 2ASEC IAPDFINRA BrokerCheck

Scores are generated using Fidelon's published scoring methodology and reflect the quality of public disclosures, not the quality of investment advice. A firm that improves its disclosures will see its score improve. Fidelon does not provide investment advice.

Verify on SEC IAPD

Last scored: · Score version: 3.15 · CRD #115122