It won't heal if you keep picking at it

Had a play with the site today. Not sure what will happen. I ramped it up with a few little changes and added some keywords. I am now wondering if I am going to hurt my rankings rather than enhance them. I will stop now and see the result in a few days I hope.

I added the following links at the bottom of my pages.

Residential Tenancy Agreement New South Wales (NSW)

Residential Tenancy Agreement Northern Territory (NT)

General Tenancy Agreement Queensland (QLD)

Residential Tenancy Agreement South Australia (SA)

Residential Tenancy Agreement Victoria (Vic)

Residential Tenancy Agreement Western Australia (WA)

Commercial Property Tenancy Lease Agreement Contract Australia

Legal Documents, Legal Forms & Legal Agreements

I wonder how far is too far in terms of keyword repetition.