Prospective tenant carries high business debt

[Dragana Miljkovic]

I'm about to be a landlord for the first time. A prospective residential tenant who is extremely eager to rent from me has a credit score in the mid 500s, due to almost 100K in debt on five credit cards, having just over 100% of credit used. They make minimum monthly payments but all are made on time. Are there ways to protect myself in this situation? The tenant has offered to put more money as a deposit.