Admin Recovery LLC is a debt buyer based in Valhalla, New York. They are a 4 on the 10 point scale of debt collector shadiness. They may not give you their business address or send you anything in writing, even upon demand. But they do exist and they do report their accounts to the major credit reporting agencies. That was how I found them and verified their address. They do have a website: www.adminrecovery.com.
Admin Recovery’s correspondence address is
45 Earhart Dr, Ste 102
Williamsville, NY 14221
If Admin Recovery is calling you, it may be about an old Rooms-to-Go furniture bill. They may try to convince you to sign a reaffirmation agreement if you file bankruptcy, but I have never seen them provide proof of a valid security interest in any furniture. I have sued Admin Recovery LLC. If they are bothering you, give me a call.