Isn't it unlikely that a homeowner who cant afford a 2-3k tax bill would even challenge this legally?

So far I've owned the place for 4 months and have not had any issues with my tenant yet.Am I Happy With My Purchase?

I doubt if you'll have any issue with your hold period since it is all about your intent anyway.

Since you’re considering converting the upper unit into a short-term rental, you may also want to implement strict rules around smoking or strong odors in your house rules to avoid future issues.

So I wouldn't recommend them unless time isn't an issue for you and you don't mind waiting a few days for a response.  

One common approach is to form a legal entity, such as an LLC, where both of you are equal partners.

This is not tax or legal advice, just what I personally do, consult your professionals! 

I know conventional lending could become an issue depending on the condition of the property.

One issue that I'm noticing is the range of reported insurance costs.

I know it’s no longer legal to do wholesaling in SC but let’s say you have the money to buy the property and you can turn it around.