There is no reason to complicate your business by having to rent to a higher risk tenant than necessary.Foster families can be very unstable and will often have "special children" that may cause extensive damage to the property.Unless you are interested in dedicating your business to taking in charity cases just keep looking for regular tenants with less complicated life situations.

I don't own a cabin (yet.. knock on wood for changing that in 2020), but a dedicated home theater is 1990s thinking.

As far as federal student loans go, I can tell you, being a supervisor at Navient, there is no deferment dedicated to doctors starting their own practice.

Just knowing how much work, dedication, failures etc that it takes to get on a level like this throws people's red flags up.  

However, if you leverage the benefits of scale, it will allow you to get professional property managers for a more reasonable rate than SFR and you can higher dedicate leasing and maintenance. 

Subwoofers (audio speakers dedicated to a powerful bass reverberation) are an inherent menace to anyone near a person using one. 

If your dedicated and persistent you will be successful, people always say they cant stand part time Realtors, I have found some full time are not reliable, and some part time work just as hard, it depends on the job you have, and if it allows the flexibility to go out and show properties, you can be successful part time or fulltime, you can do anything you put your mind to!

They are true professionals who are dedicated to their clients and always willing to go the extra mile.

Luckily, Real Estate Express has an entire section dedicated to passing the state license exam, called Exam Prep Master. 

So I dedicated myself to a few things and try to stick to getting out to them.