Serves Contra Costa and Alameda counties from Walnut Creek, handling probate and trust administration alongside estate planning and bankruptcy. David A. Arietta opened the practice in 1999 and is certified by the California Board of Legal Specialization as a specialist in both bankruptcy law and estate planning, trust, and probate law.
Concord is in Contra Costa County.
More Estate Planning Firms in Contra Costa County
Walnut Creek firm serving Contra Costa and Alameda counties. Probate work covers court filings and hearings, creditors' claims, inventory and appraisals, court accountings, and distribution, alongside trust administration, conservatorship petitions, and special needs trusts. Represents trustees, personal representatives, beneficiaries, and heirs in will contests and trust disputes.
Serves Marin County from San Rafael, with offices across Northern and Southern California and statewide service by phone and video. Handles probate, trust administration, and Medi-Cal and elder law matters alongside estate and tax planning. Founder Jim Cunningham heads the San Rafael office and is a State Bar certified specialist in Estate Planning, Trust and Probate Law.
Estate planning and elder law firm in Walnut Creek serving Contra Costa and Alameda counties. Guides executors and administrators through California probate and handles trust administration, conservatorships, and Medi-Cal and long-term-care planning, with a strong special needs practice. Founding attorney Aaron Feldman brings over 35 years of legal experience.
East Contra Costa firm in Pittsburg, with additional offices in San Diego and San Mateo, that administers decedents' estates through court probate and settles revocable living trusts after a death for successor trustees. It also handles estate litigation and Medi-Cal and veterans-benefit planning for families facing elder care.
Sacramento probate attorney whose personal practice is 100% probate court work, serving all counties of California since 1994 and Of Counsel with CunninghamLegal. John Palley is a Certified Specialist in Estate Planning, Trust and Probate Law and has completed over 2,000 California probate estates. Free consultation, with Zoom and phone meetings statewide.
Probate in Contra Costa County
Probate Court Record
Contra Costa County Superior Court - Probate Division
Contra Costa County
Phone
Hours
Monday-Friday 8:00 AM-4:00 PM
Office
725 Court Street, Martinez, CA 94553
Website
E-filing
Self-represented filing
Allowed
Self-help forms
How to file probate in Contra Costa County →
Verified October 15, 2026 · Source
Do I need a lawyer for probate in Contra Costa County? →Settling an estate in Contra Costa County →
Forms for Planning and Settling an Estate in California
Free California forms to plan or settle an estate: a will, trust, powers of attorney, TOD deed and the probate forms. Prepare each form for California.
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Revocable Living Trust
Create a revocable living trust to avoid probate, protect privacy, and control asset distribution.
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Last Will and Testament
In California, a will is signed before 2Cal. Prob. Code § 6110Verified Oct 18, 2026View source witnesses, and the witnesses sign an affidavit at probate instead of a self-proving affidavitCal. Prob. Code § 6110Verified Oct 18, 2026View source.
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Healthcare Power of Attorney
California allows a choice for a healthcare power of attorney: 2Cal. Prob. Code § 4701Verified Oct 15, 2026View source witnesses or a notary.
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Financial Power of Attorney
California requires explicit durability language for a power of attorney to survive incapacityCal. Prob. Code §§ 56, 4053, 4120, 4121, 4122, 4123, 4124, 4127, 4128, 4129, 4130, 4150, 4152, 4200, 4230, 4264, 4300, 4401, 4402, 4450, 4451, 4452, 4453, 4455, 4456, 4457, 4459, 4461, 4462, 4463, 4464, 4465; Cal. Civ. Code §§ 1095, 1189, 1556, 2356, 2933; Cal. Fam. Code § 6500; AB 2199 (Stats. 2026, ch. 47) §§ 4401, 4466 eff. 2027-01-01 per Cal. Const. art. IV § 8(c)(1); verified against leginfo.legislature.ca.gov 2026-07-14, re-verified 2026-09-18; Cal. Prob. Code §§ 3, 872, 879.1, 879.2, 4054, 4409 and Stats. 2024, ch. 799 (SB 1458) read 2026-10-11Verified Oct 21, 2026View source, and it is signed before 2Cal. Prob. Code §§ 56, 4053, 4120, 4121, 4122, 4123, 4124, 4127, 4128, 4129, 4130, 4150, 4152, 4200, 4230, 4264, 4300, 4401, 4402, 4450, 4451, 4452, 4453, 4455, 4456, 4457, 4459, 4461, 4462, 4463, 4464, 4465; Cal. Civ. Code §§ 1095, 1189, 1556, 2356, 2933; Cal. Fam. Code § 6500; AB 2199 (Stats. 2026, ch. 47) §§ 4401, 4466 eff. 2027-01-01 per Cal. Const. art. IV § 8(c)(1); verified against leginfo.legislature.ca.gov 2026-07-14, re-verified 2026-09-18; Cal. Prob. Code §§ 3, 872, 879.1, 879.2, 4054, 4409 and Stats. 2024, ch. 799 (SB 1458) read 2026-10-11Verified Sep 18, 2026View source witnesses or a notary.
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Free
Pour-Over Will
In California, a pour-over will is signed before 2Cal. Prob. Code § 6110Verified Oct 18, 2026View source witnesses and moves anything left outside the trust into it through probate.
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Free
Transfer on Death Deed
In California, a revocable transfer on death deed is signed before a notaryCal. Prob. Code 5600-5698Verified Oct 18, 2026View source and 2Cal. Prob. Code 5600-5698Verified Oct 18, 2026View source witnesses, then recorded with the county before the owner's deathCal. Prob. Code 5600-5698Verified Oct 18, 2026View source, within 60 daysCal. Prob. Code 5600-5698Verified Oct 18, 2026View source of notarization. California does not recognize a Lady Bird deed.
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Tools for Planning and Settling an Estate in California
Free calculators and checklists to plan or settle an estate in California: will and trust costs, probate, executor pay and taxes. Run each tool for California.
Trust or Will: Which Costs Less?
In California, a will-based plan pays probate attorney fees set by statute as a percentage of the gross estateCal. Prob. Code § 10810Verified Sep 8, 2026View source; a funded revocable trust keeps those assets out of probate and off that fee.
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Do I Need a Revocable Trust?
Probate in California takes 9 months to 12 months for a simple estate and charges attorney fees set by statute as a percentage of the gross estateCal. Prob. Code § 10810Verified Sep 8, 2026View source; assets held in a revocable trust skip both.
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What Does Estate Planning Actually Cost?
An attorney-prepared revocable trust in California runs $4,320Estimate: 10 hours at $432, Clio's California Trusts rate; Compare Lawyer Rates, 2025 dataVerified Oct 15, 2026View source to $6,480Estimate: 15 hours at $432, Clio's California Trusts rate; Compare Lawyer Rates, 2025 dataVerified Oct 15, 2026View source and a simple will $1,329Estimate: 3 hours at $443, Clio's California Wills and Estates rate; Compare Lawyer Rates, 2025 dataVerified Oct 15, 2026View source to $2,658Estimate: 6 hours at $443, Clio's California Wills and Estates rate; Compare Lawyer Rates, 2025 dataVerified Oct 15, 2026View source, against $0 to $549 up front plus a subscription with an online service.
Calculate Costs
How Much Does Probate Cost?
Probate on a $500,000 estate in California costs an estimated $27,235Cal. Prob. Code § 10810Verified Sep 8, 2026View source. Attorney fees are statutory (set by law)Cal. Prob. Code § 10810Verified Sep 8, 2026View source.
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Are My Beneficiary Designations Protected?
California automatically revokes an ex-spouse as beneficiary at divorceCal. Prob. Code § 5040Verified Sep 15, 2026View source; employer plans under ERISA follow federal rules either way, so a 401(k) beneficiary changes only by a new designation.
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What Are the Estate Laws in My State?
Probate on a $500,000 estate in California costs an estimated $27,235Cal. Prob. Code § 10810Verified Sep 8, 2026View source and takes 9 months to 12 months for a simple estate, with attorney fees set by statute as a percentage of the gross estateCal. Prob. Code § 10810Verified Sep 8, 2026View source. Estates under $208,850Cal. Prob. Code § 13100Verified Sep 8, 2026View source can use a small-estate procedure instead.
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