Clients

Client Feedback 

Steve Washington

“As the principal and owner of Turner Douglas RES, LLC, a property management company, I've been counting on Daniel Costello's expertise for about six years now. The condo association that I manage has followed Daniel through a couple of different law firms. I am thrilled to see him open his own firm and look forward to more excellent legal support from Mr. Costello.

He knows DMV COA and HOA law and has been instrumental in helping to keep our condo association in compliance and on sound financial footing. He also knows his way around the complicated and tedious world that is DC's Landlord-Tenant Court. Additionally, he's a gentleman and very easy to work with.

If you are a COA, HOA,  landlord, or tenant and in need of legal support, I highly recommend Daniel Costello, PC.”


Village Green Mutual Homes, Inc.

“As the board  for a Maryland cooperative we are very pleased to be represented by Costello, P.C.  Mr. Costello is one of the few attorneys that understands the unique nature of cooperatives.  Mr. Costello regularly attends our board meetings and provides training and guidance to the board of directors and the community.  His legal services are not simply reactionary to issues or concerns of the cooperative but forward thinking to help us avoid potential issues.  

Mr. Costello has represented the cooperative in several highly disputed litigation matters in the Maryland Circuit Court all with successful results.  We are very happy with his representation and highly recommend his services.”


Milton Poole

“As a homeowners association president we needed an attorney that could not only guide us through the process of amending our governing documents but could also review our vender contracts and represent us in litigation.  Mr. Costello has meet and exceeded these needs for our community with outstanding results. 

Mr. Costello is extremely accessible and always responds promptly.  It is a pleasure to work with him and our HOA is better and stronger with him by our side.”