Question #3 do people ever buy title insurance for a flip after it’s purchased, and at that point is it worth it? 

is buying more. 

For a Class C rental, I typically buy the cheap blinds from Walmart.

You tend to see higher turnover when it's that small; good chance the property owner or property manager can't find people that a) only want 700 sq ft and b) are willing to sign a 5 year lease. 

Any forwarding order for these tenants may be over so you probably won't get in contact if you try to mail them but you can check if the utility company has recently sent a paper bill although opening other peoples mail is illegal of course.

Yes, this can be done and people do it all the time, especially now.

My main goal is cash flow right now since I have recently retired and the money coming in each month is important to me.I would love to connect with other investors in the area and get some advice from people who have had success in Charleston. 

People know if I provide something, it is real.  

@Minh Vuif you have to ask random people on the Internet... pass

I used myself as the buying and selling agent