I wish I had an answer for you but I am a CO investor and I don't know much about SC however a really great investor friendly agent in that area should be able to help you answer these questions and more for you!

Check out FilePlace, where user-created forms are available for free.

YOU get to decide where you want to invest, and there are investor friendly agents all over BiggerPockets and each and every major market in this country. 

That the City of Pittsburgh is not developer-friendly.

Yes, the tenant isa good friend and can help him move out for sure, thanks for the feedback

I think the market has a lot of potential for growth overall though and the people are friendly and welcoming and I feel happy about doing business in OKC so I would say if you find a multi-family deal where the numbers work then go for it but just do your research.

I’m really just interested in finding more investor friends in my area !

Since it is conventional financing, then your friend/wholesaler may not even qualify without predictable income for 2+ years. 

Any investor friendly realtors and property managers would you recommend for that area?

It's an LMS that looks really user-friendly.