AdFi
WC

WH CORNERSTONE INVESTMENTS INC.

SEC Registered

Fiduciary Financial Advisors Serving South Shore, Cape Cod, and Surrounding Areas

DUXBURY, MAhttps://whcornerstone.com(888) 797-9009
Assets Under Management
$100M–$500M
Employees
6
Office Locations
1 office
Total Accounts
393

About the firm

At WH Cornerstone, we help you make thoughtful financial decisions through coordinated investment management, proactive tax strategy, retirement planning, and legacy guidance. As an investment advisory firm, our fiduciary duty and legal obligation is to put your interests first, which means you won't run into hidden costs, expenses, or agendas. Our solutions are customized for your life, with all its moving parts in mind.

Firm Focus

Client segments reported on the firm's SEC Form ADV — applies to all advisors at the firm.

IndividualsHigh Net Worth

Areas of expertise

Fiduciary AdvisoryInvestment ManagementRetirement PlanningTax StrategyLegacy PlanningFinancial PlanningCurve Ball Life PlanningWomen's Financial Planning

Services

Coordinated investment management, proactive tax strategy, retirement planning, legacy guidance, financial planning, money management, and Curve Ball Life Planning™ for those preparing for or experiencing major life changes.

Who they serve

Clients navigating life's financial turning points, including women seeking financial confidence and those who have experienced loss of a spouse or other life transitions, in the South Shore, Cape Cod, and surrounding areas.

Client segmentClientsAssets managed
Individuals (Non-HNW)97$47M
High Net Worth Individuals48$148M
Charitable Organizations3$4.9M

5 total clients reported on Form ADV.

Leadership

William Martin Harris
PRESIDENT, DIRECTOR, TREASURER AND CCO
Paula Sullivan Harris
DIRECTOR AND SECRETARY

Office locations

1 office in 1 state
MA
DUXBURYHQ

Advisors at this firm

4 advisors in the directory

Regulatory & compliance

CRD number
#119725
SEC Number
801-117397
Disciplinary History
No
Fee Model & Minimums
Model: AUM / Hourly / Flat Fee
Asset tierAnnual rate
Household assets <$500,0001.65%
First $3,000,0001.00%
Next $2,000,0000.75%
Next $5,000,0000.60%
Next $10,000,0000.50%
Amounts above $20,000,0000.00%

Data as of February 10, 2026 · Source: SEC IAPD & FINRA BrokerCheck

Contact Information

Editorial disclosure

This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. WH CORNERSTONE INVESTMENTS INC. has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on the SEC or FINRA websites before making any decision.

BrokerCheck data is used subject to the FINRA BrokerCheck Terms of Use. Found something inaccurate? Report inaccurate data and we will correct any error we introduced. Errors in the underlying BrokerCheck record itself are referred to FINRA, which maintains that record.

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