In all of the 60 servers/database the table CUSTOM5 exist. This table is a lookup table that tell you which document types are being used. there is a field call Enabled which is a yes/no field. So by this field I am only interested in the value "N" so in one database I would need to get a list of all the document type that are disabled and compare them with the other servers and then I will delete only the document type that are not being used across every server. So even if in one database a document type is disabled I will only delete that record when all of the databases are not using that document type.
Ugh. 60 servers is a lot. I hope you don't have to run this too often.
My approach would be to select the document types (both used and unused) from all 60 servers into a central table and then run a query against that table.
I would NOT try writing a query that linked tables across 60 servers.
If it's not practically useful, then it's practically useless.