They usually include features that allow you to send out customized applications to your tenants and also take care of the tenant screening process at the same time.

I have the time this fall and winter, and then onto a big, custom build ( if it stays the course).

Just saying you charge to give an estimate weaves out a lot of BS jobs/ underseriable customers. 

This keep bringing in difficult AirBNB customers and the long-term renter gets to handle the problems.The long-term renter is not allowed to block out days nor take any time off of hosting.Loftium sets the cleaning fee at $65.

Podio doesn't by default enforce this behaviour, but trust me, there will be significantly reduced value if you build a "Customer Relationship Mamagement" (CRM) app that doesn't center around the Customers or "Contacts" that you are trying to maintain a relationship with.

I'm eager to learn, extremely critical and optimistic in nature, and have administrative/customer service skills that can be of service to anyone.

A great existing customer could get away with it to a degree. 

I work with contractors and homeowners in selecting materials, finishes, paint, etc. and doing spaceplans, renderings and custom designs for homes.

Business relationships would be great however, the chances of your unit being vacant until their employee/customer arrives is REAL.

This letter includes some very succinct reminders (when/where/how to pay rent and late fee penalties, how to report maintenance, and a few rental-specific instructions like how to change the air filter, shut off water, and reminders to test the smoke detectors.Sending a letter after they occupy is also a good way to check in and verify everything is OK and show some customer service.