We do group showing so as to make it a lot more competitive than people feel the property is in great demand and going to make a decision sooner rather than later.   

The gains, tax advantages, etc. that can compound with an investment property are enhanced the sooner you start. 

I wish I had found you sooner.

We're using this property to test the waters to see if we want to lean into real estate investment more as a financial strategyIn about six months I'll have some stock maturing that we can use to put 20% down on a conventional loan, or we could move sooner and use a hard money lender...

Maybe they need to offload the property sooner rather then later.

The investor is a family member that is retired and will likely take funds from their traditional retirement account from which they are already drawing so they will likely want to see a return sooner rather than later.

For example, if they have 6 months left on the lease after you close, make them an offer to move out sooner, aka "cash for keys". 

My system has been working but the more homes I aquire the sooner I can quite swinging a hammer.

You are in the business to build equity and the sooner the better.

I need to accelerate my ability to pay down debt so I can get into something sooner.