Mid-term rental deposit, application fee, & rent collection

[Robert Calabro]

What do mid-term renters prefer when it comes to security deposit? I'm leaning towards a smaller non-refundable deposit vs a full month rent that is refundable. I would love to hear what others have experienced with it. 

Secondly, is it common to do a normal application fee for background and credit? My current platform charges $55. Should I keep doing this or is there something better for mid-term stays?

Lastly, what is the preferred method for collecting rent with mid-term stays? I'm currently using Avail.co for my long-term rentals. 

TIA!