Kay Mahoney Koustov Law

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Calgary Criminal Defence and Family Lawyers

Justice. Equality. Integrity

The lawyers of Kay Mahoney Koustov law have over 65 combined years of legal experience. Let our experience be your guide.

Criminal Defence Law

 There are few instances in life as devastating and potentially life changing as being charged with a criminal offence. You could be faced with a life-long criminal record, jail time, or other any number of other severe penalties. It is for these reasons that when you’ve been charged with a criminal offence it is crucial that you seek expert legal advice of a criminal defence lawyer.

At Kay Mahoney Koustov Law we provide smart, aggressive and strategic criminal defence services to best protect your freedom, reputation and livelihood. As anyone who has been charged with a criminal offence can tell you, interaction with the police and the court system can be a stressful and overwhelming experience. It is during these moments that you need a knowledgeable and reliable lawyer to guide you through the process.

We make a promise to you to always put your interests first and to ensure you are treated fairly and with respect by the various members of the criminal justice system. You deserve to have your rights respected and to have your voice heard in the process and we will make sure you get the best representation in Alberta.

If you have been charged with a criminal offence, or are concerned that your rights and freedoms are not being respected, contact us today at our Calgary office and we will ensure that your life, liberty, and reputation are properly protected.

Real Estate Law

 Whether its your first home purchase, or your tenth rental property acquisition, we can help handle your real estate purchase or sale. We have acted as counsel for purchasers, sellers, banks and landlords with purchase, sales, and tenancies of residential properties. We have advised tenants and landlords in tenancy disputes. We have drafted leases and purchase and sale agreements. With extensive experience in this practice area, we try to make your real estate transaction as carefree and seamless as possible.



Worth Every Dollar

Darren was amazing in court. He was fully prepared and worked hard to prove my case. I was charged with a DUI and other charges. I walked away with nothing. Could not be happier and more thankful for his hard work and knowledge.

C. C.

Corporate Law

Alexander (Sasha) A. Koustov handles all matters, small or large, with the same quality and accuracy. He has the skillful ability to communicate legalities to a lay-person so they can comfortably understand complicated transactions and approaches all conversations with unwavering professionalism. I strongly recommend working with Mr. Koustov and will continue to work with him on present and future files.


Our Partners

Allan Kay

Allan Kay

Senior Criminal Defence Lawyer and Family Lawyer

Darren Mahoney

Darren Mahoney

Criminal Defense Lawyer

Alexander Koustov

Alexander Koustov

Family Lawyer and Criminal Defense Lawyer

Kay Mahoney Koustov Law specializes in high conflict situations, where you have either been criminally charged or cannot resolve disputes with your significant other regarding long term, life changing decisions.  We aim to provide legal solutions to your problems by cutting to the heart of the matter, rather than taking generic unnecessary steps on your file.  We quickly identify if your matter can be resolved through negotiations with the Crown Prosecutors or through private counsel, or if such discussions and alternative dispute resolution steps have no realistic chance of a positive outcome.  We identify if you need to take other steps in your own life, to get a better outcome within the judicial system.  Finally, if there is no other options but to fight – we will fight for your rights and your position in every level of court.   With over 65 combined years of litigation experience, you can take comfort that we will get the job done. We are based out of Calgary and service Alberta including Cochrane, Airdrie, Okotoks, Red Deer and surrounding locations.