I am not a lawyer but leaving the bathtub running to the point of hitting the overflow valve and then leaving the room should be considered negligence on her part.

At least a contractor, probably an agent, maybe a wholesaler, a lawyer, and an accountant.  

Do you have your team together (lawyer, inspectors, contractors, title company, insurance, clean out services, pest control)?

You may need a lawyer well known for real estate knowledge.  

A month goes by, no issues until tonight- Tenant B says girlfriend threatened to hit her, Tenant B gets police and lawyer involvedAs a landlord, my solution was to ask BOTH guests (not the tenant) to never come back to the house again, or I will evict the respective tenant.  

In Cleveland, the move outs are scheduled for 7 to 10 days after the hearing depending on if any of the residents are minor children, disabled individuals, elderly,etc. and the suburban courts will again operate on similar timelines.Your lawyer will need copies of your leases, the posted 3 day notice, and rentrolls for use as evidence in court.

In the end, if you do not get your license, and your state attorney general wants to go after you, you are going to fight it out in court and pay a lot of lawyer fees.Typical EM(Earnest Money) funds are $10. 

The police Brandon,you call the police.If your life has been threatened with bodily injury by another person you call the police for help.If you come home and find your stuff all over the front yard and your doors locked and unable to access the property,you have been illegally evicted and you need to call the police and report what happened and get a police report on whatever items are missing and have been stolen.This is a civil matter and you will call a lawyer and sue them in court.

., tax man, states, insurance companies and the lawyers are all well aware of this.

Typically true private lenders are someone you know: friends, family, lawyers, etc.