Extension is still better than filing a wrong return and then having to redo ("amend") it.

If its a longer lease you can amend the lease.

I have plenty of clients who did their own taxes and made costly errors that required amended returns. 

@Joe Splitrock I was going to amend for next month to $1000 and have her add-spread remaining payments in the future.

If so, what types of terms are you incorporating into such an amendment?

I think if all else fails and I can't amend the situation before I close on the property, I may try this after assessing the tenant's financial health and making a judgement call based on our interactions whether they would be reasonable about that.

Now there will be some bigger landlords suing the government when this is done based on the 5 th amendment .   

Empowered by Governor Gavin Newsom with expanded emergency authority, the Judicial Council of California voted at its emergency meeting to suspend all unlawful detainer actions until 90 days after California’s COVID-19 State of Emergency ends or until the Judicial Council rules are amended or repealed.

You may wish to confirm that the new 401k provider will handle the ongoing compliance support such as any required 5500 filing (e.g. 5500-ez for a one-participant plan with assets in excess of $250,000), any required tax reporting (e.g. 1099-r in the event of a distribution or in-plan Roth conversion), mandatory plan updates and amendments, etc.4.

If you received state K-1's, you may need to consider filing additional state returns.If you filed your return already - you may be required to file an amended return.