You can always screen your tenants well, but there's always more risk in those areas.

We do question was more along the lines of expanding the business to manage more properties, and how to go about screening candidates and streamlining processes.

You might want to read our series about how to “Screen a PMC Better than a Tenant”: https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processes

@Eric Metz The problem is that one of the usual metrics to do a quick screen, the 50% rule, doesn't work on low rent properties. 50% of a low rent amount won't allow you to cover the big ticket items.

When approving new tenants I do my best to screen out people who will not take good care of my property, in addition to screening for income, etc.

He's not a bad guy, but I would not have rented to him if I screened him. 

@Scott Brown So sorry to hear this brother that's why I screen GC and ask for latest work but sometimes not even that can determine there work until they actually doing the job.

Here those units within 5-10 minutes walking distance of campus are best purposed for student housing - both because they are most desirable to the students and less desirable to other populations.Within this radius:A multi-unit building comprised primarily of 2 bedroom units with a few 1-bedroom and/or 3-bedroom apartments works well;A house with 4-5 rooms is appealing to groups of chums (mates) looking to live together, though social cohesion is more difficult to maintain and annual turnover is common;A house with several furnished rooms (and a live-in Den Mother) is appealing to International Students.We have been fortunate to experience very little in the way of "student damages" to properties, but we screen very thoroughly and almost always require a guarantor (typically parents or grandparents) to backstop any damage or fiscal failure of little Janey or Johnny.  

.; how to analyze properties, how to find an investor-friendly agent, how to engage in a strong due diligence process, how to screen tenants, how to manage the property, how to build a network of contractors, plumbers, electricians and other pros, how to manage the book keeping of the property, etc., etc., etc.

When they fill out the application, they pay for the screening report to be run on themselves.