I suggest you understand the 50% rule.  

I have a Wynd sensor in my units (mention that we have it and it's 99.9% accurate in our emails), put it in my house rules that it is a $250 fine, and have a sign small above the detector with the same language.

Property taxes and insurance can vary wildly depending on the location in SC - there really isn't a rule of thumb or generic figure that can be used. 

FHA and conventional loans are available for such for non-permanent residents, but there are quite a few rules so I can't be sure you'd qualify without talking further.

-specific taxation rules for foreign investors.

It’s to take advantage of the 2024 bonus depreciation rules which include 60% bonus in year 1 for any life classes less than 20 years.

@Karen Seguin, it all depends on what you are trying to convey to your tenants.At minimum, any welcome letter should provide updated contact info for maintenance requests and mailing address for rent payments, and if the legal notice address is different than lease, include that.This can also be a good way to politely remind people of any general rules that you expect them to adhere to.  

And they wouldn't do it for us as owner occupants because our revenue comes from selling houses (hell - we're a general contractor - thats how we make our money) which was strange but its their rules. 

Lease Agreement: Use a compliant, detailed lease covering rent, rules, and responsibilities.2.

Its' not the rule but certainly common that filth grows with long term tenants.