A Canterbury law firm is being inundated with farmers wanting to sort out issues with the response to Mycoplasma bovis.

$73 million has been paid out so far in compensation to affected farmers, but law firm Tavendale and Partners says the process has been extremely stressful for them.

Lawyer Alana Crampton told Kate Hawkesby it's had to set up a dedicated department just to deal with Bovis issues.

"We just felt the need to step in and see if we could bridge the gap between farmers and MPI."

She says the uncertainty has been extremely stressful for their clients, with many considering legal action.

"This is obviously pretty much their only source of income, and if they are sitting there and waiting for a claim that, A, they don't know where the funds are going to come from, and B, for what amount."

Crampton says there's also a lack of consistency in herd valuations.