# Dennis O'Brien

> Dennis O'Brien is a fee-only financial advisor at Coastal Financial Advisors, Inc. in Philadelphia, Pennsylvania, who holds the BS, MS and RTRP credentials. Dennis charges a flat fee or retainer, hourly fees and an ongoing planning fee and focuses on flat-fee planning, tax planning and retirement planning.

Page: https://find.wellspent.co/advisors/dennis-obrien/
Built from public directory listings; last checked April 21, 2026.

## Facts

- **Firm:** Coastal Financial Advisors, Inc.
- **Based in:** Philadelphia, Pennsylvania
- **Fee model:** Flat fee or retainer; Hourly; Ongoing planning fee
- **Works virtually:** Yes (firm's website)
- **Accepting new clients:** Yes (firm's website)
- **Assets under management (firm):** $23.9M across 97 accounts
- **Credentials:** BS, MS, RTRP
- **Specialties:** Flat-fee planning, Tax planning, Retirement planning, Small business owners, Divorce financial planning, Estate & legacy planning
- **Works with:** Founders, Retirees, Pre-retirees, Executives, Divorced individuals, High earners, Early-career professionals, Mid-life transitions
- **CRD:** 1414218 (https://adviserinfo.sec.gov/individual/summary/1414218)
- **SEC registration:** Investment adviser representative in NJ
- **Exams passed:** Series 66 (2003)
- **Firm size:** 1 employee
- **Disclosures:** None reported
- **Website:** http://coastalfa.com

## Frequently asked questions

### Is Dennis O'Brien a fee-only financial advisor?

Yes. Dennis O'Brien is listed in the NAPFA directory (NAPFA admits only fee-only advisors). SEC records as of October 27, 2026 show no broker registration and no commission compensation reported by Dennis's firm.

### How does Dennis charge for financial advice?

Dennis charges a flat fee or retainer, hourly fees and an ongoing planning fee.

### Does Dennis work with clients virtually?

Yes. Coastal Financial Advisors, Inc. says on its website that it works with clients remotely.

### Where is Dennis O'Brien based?

Dennis O'Brien is based in Philadelphia, Pennsylvania.

### What does Dennis specialize in?

Dennis's specialties include flat-fee planning, tax planning, retirement planning, small business owners, divorce financial planning and estate & legacy planning. Dennis works with founders, retirees, pre-retirees, executives and divorced individuals.

### What credentials does Dennis O'Brien hold?

Dennis O'Brien holds the BS, MS and RTRP credentials.

### Is Dennis O'Brien registered with the SEC?

Yes. Dennis O'Brien is registered as an investment adviser representative in NJ (CRD 1414218), per SEC Investment Adviser Public Disclosure data as of October 27, 2026.

### How much does Coastal Financial Advisors, Inc. manage?

Coastal Financial Advisors, Inc. reports $23.9M across 97 accounts in assets under management.

### How do I contact Dennis O'Brien?

Through Dennis's website, coastalfa.com.

## Sources

- NAPFA directory listing (https://www.napfa.org/find-an-advisor/firm/3517): NAPFA admits only fee-only advisors
- SEC Investment Adviser Public Disclosure and Form ADV: registration, exams, and firm facts, data as of October 27, 2026
- The firm's website (https://coastalfa.com/): specialties, clients served, and fees, checked October 28, 2026

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Source: Wellspent, the public graph of fee-only advisors (https://find.wellspent.co). No paid placement.