Eliminate debt, establish a budget, and save.

Then tell them you're willing to forgive their entire balance if they're willing to pay x and move out by x date.Do not cancel the eviction though until you confirm they're out and held their end of the agreement. 

So for example I'm very conservative and don't want any debt on them because I feel this hardens them in case of a severe recession.

When your LLC takes a loan, expect as members to personally guarantee the debt.

This eliminates the problem of increasing your debt and damaging your credit score.

Any existing debt?

We buy at a discount and pledge our legal right to collect the debt (a collateral assignment agreement) as the collateral for the private capital loan we take out, which is backed by the value of the real estate securing the 1st loan.  

Unsecured personal debt is often from institutional sources, but at rates of 9-20%, fully amortized over 3, 5, or 7 year terms (not interest only).

You have used home equity lines of credit to purchase investment rentals and want to know the best way to pay down the HELOCs.Between the two properties you bought, after expenses, you have $250 a month positive cashflow to use.What I like to do is pay down some principal every month with my positive cashflow.I use my extra active income from real estate commissions helping other investors to pay down the principal even more which just frees up that credit for me to use again.I know I can refinance the HELOC debt before it changes to principal and interest as it is just interest only payments as yours are.One difference is the cashflow, I have greater positive cashflow and could make the principal and interest payment in the future with the extra cashflow I already enjoy.I always get HELOCs on my income properties as well after purchasing them to pull out as much of my downpayment as possible.

@Alec Barnes we use Debt-To-Income Ratio (DTI) instead of income = 3x rent.Reason?