No doubt there is money to be made, but the state has overstepped any sense of ownership from the landlord.

But don’t worry I’ll get my money.

That lawsuit would cost more than the building, if you lose, and if you win you will still be out a lot of money; and way more stress than the batteries.

I will negotiate the lowest MAO I can and earn the most money I can from the deal.

If a toilet runs at full pressure, the tenant is going to call you sooner than later from the sheer racket it's making.If you are purely looking for leaks, you will spend significant sums of money to save yourself very little money in the long run. 

Do you wash the bedspreads, comforters, etc... or is there a better way?

Then see if the money you might make is worth all the effort, money, headaches, etc. to build out. 

@Chloe Hohman  Agree with Nicolas, I don't see any money for you in this deal.Even if you could put down $50k, and financing $200k, with a standard 30 year 7.5% mortgage, your mortgage payments would be $1400 per month. 

While there are certainly cases where they can make great money, in general your best recession-proof best is likely a more "average" home.

as a break between living spaces.I'm not a builder but I imagine builders enjoyed a little savings by not having to budget for all the additional interior walls, but maybe that money had to go into costs anyway.Open floor plans are nice, but a bit too open for me.