Fortunately I was able to cover most of the additional expenses from the overage, but it wasn't fair to my partner into such a risky and stressful position.

I found a 3 unit property and the rents from 2 units covers the full PITI, meaning I can live in the 3rd unit for very little.

I use this as one of my screen tools and don't rent to anyone without a bank account.

The landlord should determine how much the fines may be and deduct enough from the tenants deposit to cover those fines. 

i think i will take the load of tenant screening, but would prefer someone can help showing, maintenance  

At that time, I only screened the male partner b/c he was the one working in the relationship and his fiance was not.

If I can't increase the bookings enough to cover the expenses of running the house at least we are going to have to sell it.

Will you be leasing out your existing home to cover the existing mortgage? 

I'd think the tenant would cover the whole bill, along with the other utilities.Vacancy looks low.

Now if you do it long enough, that will happen, but you want to avoid that by having enough spread to cover the downside risks.As J stated, a 15% of ARV profit is a good minimum to go off of and anything above that will be your gravy.