Thanks @Chris Seveney this brought some clarity to the documents I’ve been receiving lately. 

Some landlords are strict when it comes to late payments.

That means they don't have the financial means to afford your rental and are highly likely to default on the rent payment.I recommend you watch them like a hawk and start figuring out how to handle late payments, non-payment, and eviction immediately.

Also, I get an alert when the deposit is made (good for tracking late payments) and the online statements list their names that are on the card.

You should use a state-specific lease that is clear regarding the start and end dates, the monthly rent, the fees that will be charged (ex. pets) and those that may be charged (ex late fee), the amount of the security deposit, and a clear list of rules associated with the property (no smoking inside is a big one as are rules related to parking).

:) Do you charge your guests a fee to heat the pool (I have been seeing this more and more lately) or maybe build in the extra costs associated with heating it into your nightly rental costs?

They could be allowing a tenant to pay rent late each month, and that tenant will be expecting you to make the same exceptions for them. 

They still manage to pay rent on time with one exception where we negotiated a late payment.Bottom line is I’m just tired of dealing with them from the problems, erratic behavior, etc. 

Good afternoon.

Like the Solo 401K idea but at 71 yrs a little too late to start a business and earn enough salary to grow a Solo 401K for a real estate purchase.