Concord solo practice serving Contra Costa County with probate and trust estate administration for executors and heirs, plus will and trust contests, breach-of-fiduciary-duty disputes, and court-appointed conservatee representation. Ronald K. Mullin has practised in the county since 1978 and sat on the Concord City Council from 1982 to 1991.
Walnut Creek is in Contra Costa County.
More Conservatorship Firms in Contra Costa County
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.
Free
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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Free
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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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.
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.
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How Do I Settle an Estate?
Settling an estate in California: the personal representative files the estate inventory within 120 daysCal. Prob. Code §§ 8800-8804, 8900-8903Verified Sep 15, 2026View source of appointment; creditors have 4 monthsCal. Prob. Code §§ 9050-9054, 9100-9104, 9150, 9153, 9256, 9353, 11420; CCP § 366.2Verified Oct 18, 2026View source to present claims; a simple estate closes in 9 months to 12 months.
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