It was I believe 3k to sign up and then the cost to set up the LLCs for me was I believe $700, that partially depends on your state.

Section-8 rentals are great because of that dependable income.

There are best practices on certain items that provides a guidelines.Commissions are always negotiable like any other services, you can shop around for the best value for money.All depends on the risks that you are willing to take.

The violation - depending on your state - will provide a 'cure period' before eviction proceedings would begin. 

I've never seen such a mismanaged business.

I find that it's almost a one stop shop in that I can use it for my business checking and savings accounts, bookkeeping, for rent collection, I can issue virtual credit card, I can create all the financial reports I need to run my real estate business and prepare for tax filing and through their partners I can vet my tenants, develop state-specific leases and more.

As others have mentioned, DSCR loans are generally for turnkey rentals (although outdated rentals may still qualify depending on the level of deferred maintenance). 

I also believe that I should also invest is my business.

As far as the business card is concerned, to me personally I think having both things on one business card is acceptable .  

Quote from @Michael K Gallagher: Quote from @A Rao: I invest in land and have done entitlement/zoning and other DD work successfully for years.A broker called me this morning on a property I have on a busy interesection and has a QSR client who likes the location, but does not want to do a ground lease, only a build to suit.