That helps a lot and the order in your workflow makes sense. 

Write down all the tasks that are part of your work flow for property. 

Since you are considered the end user of this project depending on how the verbiage is illustrated, all responsibilities should be the GC's, I would highly recommend researching and using the workflow of the PMP mythology.

Depending on the number of units you have, the monthly cost could be worth it because you can set up workflows so that other users receive the request - which could be vendors if you want.Red Hand's Electronic Tenant Solutions is something I've used with commercial properties (office, industrial).  

You will gain experience in investigating titles, running numbers and can put your work flows into action so that when a real deal comes around you can be sure of knowing the correct steps to take.

Identify the one that works best for your workflow.

I also really like the workflows embedded so you can assign tasks and keep track of deliverables per person, per project.  

Do you get a significant amount of paper checks, and what is your workflow for getting them into Buildium's system?

WHAT I NEED:Currently my company uses Wrike (similar to Asana, Monday, etc.) for our project management software and we’ve built out very indepth workflows, dashboards, projects, tasks, content in the tasks, etc.

hl=enAs mentioned above, you could certainly setup a Twilio integration that allows a customer workflow integration, but that may be beyond most people’s expertise out of the gate. https://support.twilio.com/hc/en-us/articles/223179948-Does-Twilio-Support-Dialing-International-Phone-Numbers-