Submit your offer, you don't HAVE to have prequalification. 

I submitted my offer and within 5 hours of me submitting my offer, the list price on the house has now changed to $1K above my offer price.Has anyone dealt with an issue like this before?

Those who submitted app we let them know of the increased rate and asked who is still interested. 

On the buy side, we submitted 6-8 offers and all were involved in highest and best rounds.

We utilize QuickBooks Online for accounting, so it accepts automatic ACH or e-check the tenants can submit payment for each month.

Just submitted my approval to join this group as well.

While true, you need to submit a list of properties within 45 days of closing and cant change them AND close on some or all of them within 180 days AND use all the cash proceeds.3.   

You'll be able to see deals faster, set up your own searches anytime and be notified immediately, access properties faster (like digital lock box access), you won't have to wait on a buyer's agent for anything, you'll be able to submit an offer faster, AND you'll be able to earn commission on your deals, accelerating your investing. 

If someone submitted an application, you should let them know whether they are approved or denied.You do not need to respond to every lead, but it's a good practice to have at least an automated response that acknowledges receipt of their information and outlines what your/their next steps are, including that you will not contact leads that do not meet your qualification criteria (which I would recommend you outline).

It'll save you time if you can spot major issues ahead of time before submitting the offer and paying an inspector.