It is possible to share your Hound and linter configuration among multiple repos under the same GitHub organization.

What you need to do, is configure Hound and desired linters under a single repository as usual. Then you can use that repository as your org-wide configuration.

From houndci.com/repos find the "User organization-wide config" toggle:
​ 

Click the toggle to enable the setting, then select the repository which contains your master configuration.

Your other individual repos will now inherit this configuration, but can still override linter rules  on a per-repo basis.