My main desires for this would be payment portal, maintenance requests/tracking/communication, lease sending/submission/approval, prefer push notifications but at minimum text communication for payment reminders, maintenance info, and announcements. 

Not if, everything is legally correct Brent.

We get notifications about many of them, but not all.

I posted a new rental listing to Zillow, and it was active for about 30 minutes before it was relabeled as "off market".No explanation, no notification, nothing....

Just set-up an MLS notification and wait for the listing.

I peeked quickly at a few other headings such as 'starting out'  and saw a few also.Plus use your key words option to include 'license' or maybe agent or realtor to receive notifications about new threads on the topic.

It may not.  If

Ask your Realtor if you did or not. If

I may have to reset my “notifications” on BiggerPockets to make sure l don’t miss relevant discussions.

Three possibilities:You get the ball rolling with your (or another) lender before that loan in the works is actually closed, which is going to screw you up 5 ways from Sunday when (not if) the lender(s)/underwriter(s) find out.