How do I check if my designer/architect has been sued before?

I employed who I thought was architect but it turned out they are only a designer and had the stamping outsourced. The designs I then received were substandard (did not meet the landlords spec) but he still has some money of mine which was for construction that he's now refusing to return (under the pretense of fees incurred in anticipation of building work). I am considering filing suit to recover my money and the architectural design fees.

I have a feeling they been trouble like this before and would like to know if they have been sued before.

If they have, can this history be used to in my suit or court. This will not be going to small claims as the amount is over $5000. - Is this your question? Add additional information