Only accept cash.
Here’s another tip re: cash collections.
You’ll probably find people pay w/credit cards whose merchant service providers take their cut. Soon someone comes along with an attractive smaller cut, which I fell for. Terminal lease contracts are for 48 months, so despite a lower rate, I paid 2 years worth of terminal leases that I did not use. $70 a month.
Shop around for the best rate from the start and try to get 2 year terms rather than 4.
Ditto