But its up the individual no matter who they are to have sufficient income and credit.. this goes back to the financial literacy ..  

As I've cautioned elsewhere, the model is overplayed in some markets right now, perhaps especially where there are many underperforming STR's, so be careful if you're thinking of launching one.The MTR model needs to generate sufficient return in excess of the LTR model in order to justify its increased cost, management and risk.  

(Check some of these claims as rules vary state to state, but it's sufficient to say, the protection offered by policies is another great reason to love them.)

If she can heat it sufficiently to 70 and you’re paying all the bills, why was the health department involved?

I personally have sufficient savings to pay 48 months of a lease term in advance (not that I would), but don't have anywhere near enough to afford to actually purchase in our market where the average home price is $900k. 

You should still get sufficient notice for when they move out to find new tenants.

Think high credit scores and being able to show sufficient liquidity for your growing portfolio as your reserve requirements. 

Lenders may require a DSCR greater than 1.0 to provide a margin of safety, ensuring that the property generates enough income to comfortably cover its debt.For example, if a lender requires a minimum DSCR of 1.25, it means that the property's NOI must be 1.25 times greater than its annual debt service to qualify for the loan.A higher DSCR indicates a lower risk to the lender, as it suggests that the property is more likely to generate sufficient income to meet its debt obligations.

When you add the real loss in value to the requirement for substantial cap ex to maintain the old typically under-improved and weather-beaten housing stock, nothing short of an economic miracle is going to generate sufficient "cash flow" over 5 to 10 years to offset these real losses/expenditures.   

Happy tenants are not a guarantee and if you're relying on rental income to make the bills and don't have a sufficient cushion, a 2-3 month vacancy (which can happen!)