About Us

Over a Decade of
Providing Trusted
Legal Help.

If you or someone you love needs legal help, contact us as soon as possible to learn more about your legal options.

For over a decade, we have been helping people learn about their legal options and find the legal help they need.

(240) 744-4614

Call us to speak to a specialist who can answer your questions and start the process of finding you the legal help you deserve.

Fill out our online form:

Fill out our online form and one of our specialists or attorneys will begin reviewing your situation as soon as possible.



Firm Leadership

Hans J Crosby, Esquire

Founder and Director

Hans J. Crosby is the the founder of ON CALL ATTORNEYS. An attorney for over 20 years now, Hans’ clients have included not only individuals and small business, but some of the largest publicly traded corporations in the world. With a wide range for experience from multi-million dollar litigations to transactional work, patent and trademark prosecution to business dispute resolution, Hans has the knowledge and expertise to guide you in the right directdion. Hans has now taken this knowledge and created ON CALL ATTORNEYS where everybody has a chance to find the legal help they need.


Villanova Law School – J.D.
Drexel University – M.S. Finance
VA Tech – B.S. Biology

Bar Admissions

United States Patent and Trademark Office – Registered Patent Attorney

On Call Attorneys® / Crosby Law® is a law firm. If we take you on as a client, it will be through a document you sign. No attorney-client relationship arises from using this site or contacting us.
* Disability and injury cases are handled on contingency and you pay “No Fee (or expenses) Unless We Win” your case.
† Trademark, patent and copyright matters are subject to either a fixed fee or an hourly attorney rate.
On Call Attorneys® / Crosby Law® maintains principal responsibility for trademark, patent and copyright cases. For other cases including disability and injury cases, while On Call Attorneys® / Crosby Law® maintains joint responsibility, most cases are referred to other attorneys for principal responsibility.
Classic Counsel, P.C., dba On Call Attorneys® and Crosby Law®, 1125 West Street Suite 200, Annapolis, MD 21401
On Call Attorneys® and Crosby Law® are federally registered trademarks of Classic Counsel, P.C.

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