The tenant would like to extend her lease for 18 months.

I can put in an amendment to extend the closing date and due diligence period, but I do not want to wait 2 or 3 more months until the tenant moves out.

So far we're thinking the eviction moratorium ends Jan 1, but of course could be extended. 

It may be extended; may not. 

Another would be buying a deal nearing the end of its term at a discount, and using this as a value add opportunity by extending the lease. 

Water systems might have to add pumping stations or extend lines.

Im active duty military, and am planning on selling one of my homes (Property #1) in the next several months, which meets the 2/5 capital gains tax exclusion criteria of having both owned and lived in it for 2 of the last 5 years prior to selling (and my understanding is that the rule actually extends to 15 years for the military).

The company I used was pretty bad with communication and I had to extend the close on the house twice because the refi wasn't done on time.

I believe he will extend the order for probably a few more months near the end of Dec 2020, and then again after that in 2021. 

It just comes in different forms with different durations.