You basically have no escape plan.

I did approach them about a year ago about getting $25k credit line per property, and the response I got was basically no.

Assuming your property is in Utah (like your profile indicates), here's the state law from a basic internet search:In Utah, a tenant who abandons a rental property without notice is liable for the lesser of the following: The rent remaining on the leaseThe rent plus the difference between the fair rental value and the agreed-upon rentThe cost to restore the property to its original conditionThe landlord can also remove the tenant's belongings and sell them if the tenant doesn't claim them within a reasonable time.

You'll improve over time, but this basic formula remains.1.

Finally the pro formas that they provide are absurdly basic and neglect at least 25% expenses, so are essentially useless. 

Basically a partnership.

I am looking for the basics.  

I just used this basic loan calculator:https://www.calculator.net/loan-calculator.html

I haven't heard of Noshable but seems like a massive win-win all around. 

You basically own 3 paid for properties.