It nets $50k after the normal, recurring expenses such as utilities, wages, etc.

Your depr. expense might only be $1,000 each year going forward for the next 15 years.As to what to ask for, the P&L will give you a good idea of all the expenses incurred but I would try to get a three year history so that you could see what is "normal" operating expenses and what are "capital" non recurring expenses.

For example, if my client is putting 10% down on a $1M purchase and I reduce my commission by 1% ($10k), that would only reduce the amount my buyer must pay out of pocket by $1k (well, technically only $990 since technically the price after reduction would be $990K, but you get my point)Alternatively, if I leave my commission at 2%, but inform escrow that I am going to be crediting my client, say $5k, to be used towards their recurring and non-reccuring closing costs; they save 5x as much, but only cost me 1/2 as much as the reduction.

The recurring expenses monthly are about 3k.

You can also setup recurring monthly payments.

Because I'm 2000 miles away, this caused a lot of anxiety and stress that I would just prefer to avoid.

It also allows the renters to set up recurring autodraft - we don't require that, but half our tenants use it, which is great. 

More than that, I love that you are considerate of your wife's risk tolerance and related anxiety.  

I have been using QuickBooks online and generating recurring invoices for the rent and receiving payments against that.  

It is a brain disorder due to anxiety.