I think all this depends on your risk tolerance and motivation. 

Texted her again two days later, no response. 

I also give my screening criteria up front and let them ask them if there is anything we need to discuss before they pay the fee and this seems to motivate them to self disclose which saves us both time and money if they would be rejected anyway.  

So far I’m feeling pretty motivated and alert and I’m typically a snooze-aholic.

They can take calls, text messages, emails, etc.

Another week went by without a reply, so I had my agent notify the seller's agent that the tenants were non-responsive and needed to be out before we closed.A week passes, I got the clear to close, and then I received a slew of text messages and missed calls from the tenants.

Most send bulk texts.

I was firm with the tenants multiple times over text/in person and essentially hardballed them with a strict deadline saying their items may get damaged by contractors by this date, and they ended up clearing everything out.Didn’t have to pay them any cash, hire an attorney, build a shed, or pay for storage.

I am currently lacking the motivation to start my Real Estate journey.

Return calls/texts/emails promptly.