You should also get Estoppel Letters from the tenants that verify the current state of their tenancy and if they have a last month's rent or security deposit being held. 

Is he managing, leasing out your units, collecting rent and security deposits etc…?

@David ShivesI would have a separate checking account for the property where rent is deposited and expenses are paid out of and then a savings account or money market account where you can keep reserves.

Some say if they have a security deposit and you know they will be difficult promise a full refund as soon as they move out and turn over the keys. 

I assume you kept her security deposit.

Are there statements or bank account deposits that verify they are actually paying rent?

Sine her rent is unpaid, there is not enough security deposit to cover both unpaid rent AND damages that may need repair. 

I get loans from a local bank who takes application deposit which are refunded if no loan is closed, less the cost of a credit report or possible appraisal.they offered true no credit reported commercial loans that don’t count towards your Fnma list and have long before the new lenders.

I have occasionally rented to foreign students.Check their passport and visa stamp, make copies of them, require a bit larger deposit.

For both our in house reno crews and the ones we work with, most can start a job within 2-3 weeks after closing/deposit paid however depending on the job size could take a week to a few months.