And by the sounds of it it’s not doing your wallet any favors.

@Samuel Carmichael besides what @Brandon Ingegneri said about looking at absolute dollar amounts to figure out if it's even worth the aggravation, I also agree with @Michinori Kaneko about looking at percentages.Personally I look at percentages first, namely 1) cash on cash return (yearly money back after all expenses including mortgage, divided by all money invested to get it rentable) and 2) debt service coverage ratio (net income after operating expenses but before mortgage payment, divided by the mortgage payment).The first is (obviously) a measure of return, while the second is more of a measure of risk as it tells you how much of a buffer you have between the property's net income and the monthly fixed mortgage payment.After you get a little more experience you'll also start to factor things like replacement reserves into account.

It's a numbers game and you need to continually search for "replacements" for all parts of your business that aren't working optimally for what you're trying to do.

Sounds great!

To me it sounds like I should get rid of it.

It doesn't sound like she mentioned plans to move him in.Also divorce and marriage certificates are public records, it shouldn't be hard to verify her marital status.

Having access to the financials, documentation, and physical inspection will help you make a sound business decision as to proceed, or move on.

Usually rentbacks call for higher rents than market, not lower. of course, those situations I've seen have always been short term. you make it sound like this can be several months. in that situation, I would tell them they have to pay market rent, and provide security deposit.

I've had them do panel replacements, pull new circuits, install recessed lighting, etc. 

Your goal of quitting your job and traveling sounds wonderful - and the nanny part sounds divine - I think you've found your tribe here ;)Sounds like you've already put yourself in a great position with these first two properties.