Charles A. Koss - Danville, CA
Attorney at Gagen, McCoy, McMahon, Koss, Markowitz & Fanucci
Business Law Lawyers in Danville, CA
630 San Ramon Valley Boulevard Suite 200 Danville, CA 94526
Danville Business Law Lawyer
Updated: 07/02/2026
Areas of Practice
- Business Law
- Corporate Law
- Employment Law
Litigation: 75%
Attorney Information
Overview
As one of the firm's senior trial attorneys, Charles Koss has nearly three decades of experience representing individuals, small businesses and major corporations in real estate, property, employment, estate and trust litigation, and winery litigation. He has extensive experience in state and federal courts, as well as administrative, regulatory and enforcement proceedings. Mr. Koss's courtroom know-how, combined with his accounting background, gives him a unique ability to analyze and solve his clients' legal problems. He is effective in settling disputes where a business resolution can be found and, when necessary, will fiercely protect his clients' legal interests in court. He has earned Martindale-Hubbell's "preeminent" AV rating and the repeat business of many satisfied clients. Mr. Koss is also the managing Shareholder of the firm.
Mr. Koss represents a diverse group of real estate clients, from individual brokers, buyers and sellers to national brokerages. He specializes in disputes that arise out of the purchase and sale of real property, including nondisclosure, misrepresentation, breach of fiduciary duties and enforcement of purchase agreements. Working closely with the firm's land use group, he has litigated numerous disputes over easements, right-of-use, nuisance and zoning.
Through his longstanding relationship with his small business clients, Mr. Koss has developed an expertise in all aspects of employment law. He advises employers and employees about their legal options and counsels businesses on risk management and litigation avoidance techniques. He has represented clients in arbitration and before governmental agencies with jurisdiction over the employment relationship, including the California Labor Commissioner and the California Fair Employment and Housing Commission.
Although an experienced transactional attorney, Mr. Koss is often sought out by the firm's diverse practice groups to help posture clients in impending litigation matters. He has developed a niche in winery litigation, representing vineyard owners and closely-held wineries in a broad range of business matters, including grape-quality issues, non-payment and shareholder disputes. He is also experienced in estate litigation, representing clients who are contesting or defending a will or trust or disputing the administration of an estate.
Education
Legal Education
-
University of California, Berkeley, School of Law,
Berkeley,
California, 1981
J.D., Doctor of Jurisprudence
Non Legal Education
-
University of Wisconsin,
Milwaukee,
Wisconsin, 1975
B.A., Bachelor of Arts
Current Employment Position(s)
-
Attorney
Bar Admissions
- California, 1981
Other Affiliations
- American Bar Association (Member, Real Property and Litigation Sections)
- California Trial Lawyers Association (Member)
- Wisconsin Institute of Certified Public Accountants
Contact
630 San Ramon Valley Boulevard
Suite 200
Danville, CA 94526
Phone Number: 925-605-0357
Fax Number: (925) 838-5985
Email: Send a message
Website: https://www.gagenmccoy.com
Hours: Monday-Friday: 8:00am - 5:30pm, Saturday-Sunday: Closed
Disclaimer
Your Profile? Update Now
When viewing a listing, consider the state advertising restrictions to which lawyers and law firms must adhere, as well as our FindLaw.com Legal Directory disclaimer. Some lawyers publish comparative information regarding the services that they provide which may be subject to specific comparative communications restrictions.
How do I choose a lawyer?
Consider the following:
- Comfort Level – Are you comfortable telling the lawyer personal information? Does the lawyer seem interested in solving your problem?
- Credentials – How long has the lawyer been in practice? Has the lawyer worked on other cases similar to yours?
- Cost – How are the lawyer's fees structured — hourly or flat fee? Can the lawyer estimate the cost of your case?
- City – Is the lawyer's office conveniently located?
Not sure what questions to ask a lawyer?
Here are a few to get you started:
- How long have you been in practice?
- How many cases like mine have you handled?
- How often do you settle cases out of court?
- What are your fees and costs?
- What are the next steps?
Want to check lawyer discipline?
It is always a good idea to research your lawyer prior to hiring. Every state has a disciplinary organization that monitors attorneys, their licenses, and consumer complaints. By researching lawyer discipline you can:
- Ensure the attorney is currently licensed to practice in your state
- Gain an understanding of his or her historical disciplinary record, if any.
- Determine the seriousness of complaints/issues which could range from late bar fees to more serious issues requiring disciplinary action.