Happy to discuss offline.

I would also like the option to count the bill as paid as the administrator if they decide to pay offline in a given month.I am pretty new to WordPress so I may be looking at them wrong, but it looks like all the shopping cart plugins I can find would require the tenant to choose a rent amount to pay.

Actually, quite a few posters agree with me both online and offline.

@Tony Matic  happy to talk off line..

Reach out off line and I can connect you so you can have those conversations with locals.

Happy to chat further offline if you'd like. 

That way, all of our locks are in the same app and have the same functionality.For exterior deadbolt locks (front door, garage door), we used this:https://a.co/d/2SFMNcy For normal interior locks (bedroom), we used something like this (the ones we have are currently unavailable, but this has similar capabilities):https://a.co/d/8C6nYenYou can create codes from anywhere without the locks having internet connection because it can create them using an offline algorithm.

I’ll share my personal experience thus far and am happy to chat offline if it helps you.  

Great place to meet more REI investors offline.

Message me off line.