"The situation will be more complex for retailers in shopping centres who will probably also have lease obligations," Jane Holland said.
"These could require them to keep trading and which may impose penalties if they close their doors."
Holland urged landlords and tenants to be check documents to work out how the pandemic affected key clauses such as the payment of rent.
Liz Coats, from Bell Gully, said the firm had received a number of calls from clients whose employees could not work from home - including retail and hospitality.
"The Government's announcement regarding Covid-19 leave and wage subsidies provides some reassurance for the short term, but many of these businesses face significant uncertainty over the coming months," she said.
"We have to be there because our employers want to stay in business, but it's putting us at risk," the worker said.
"The Government needs to order the temporary closure of non-essential businesses that have face-to-face contact with the public."
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A spokeswoman for Scentre Group, which owns Westfield in New Zealand and Australia, said concerns from any retailers should be raised with centre management.
"We are engaging directly with retailers on a case-by-case basis as they manage their business through this volatile period," the spokeswoman said.
"We encourage our retailers to keep talking to us directly about their specific needs.
"If retailers are in doubt as to who to speak to, contact your local Westfield centre management in the first instance."
The Scentre spokeswoman said health and safety were paramount and stores had comprehensive cleaning systems in place.
"It's important to give retailers the opportunity to trade and engage with customers throughout this period, especially given shopping centres are regarded as 'essential activities," she said.
Malls had increased the routine cleaning of frequently touched hard surfaces, including in car parks.