Your only danger is if the cash flow is weak (e.g. $50 a month) and the rental market tanks so you start operating a negative cash flow which means you're eating into your ability to save.If you have buy weak, a downturn will affect you.

The closer you are to retirement, the fewer risks you should take.

I also (perhaps with a bit of bias) think this is easier to do in the storage world than in multi-family....there's just fewer moving parts! 

It leaves behind dangerous chemical compounds that can cause health issues for people .

It's extremely normal to get a lot of calls, fewer lookers, and even fewer actual applicants.

Bx does not have this.The issue with using Bx as your grounding means is the fire dangers you could be introducing into the circuit.

You would be leveraging yourself to a very dangerous point if you are getting a private loan to cover the 3.5% down payment (even if only for a few months) and you will be borrowing at a 96.5% LTV anyway. 

If the numbers work so that you have more cash flow for fewer doors, it's a good sign.

So I am going to transition to fewer but larger deals in single or small multi family and see how that goes.

When rates go up and fewer people can afford to buy, that will help strengthen my renter base and I'll focus on paying everything off so I can live a debt-free, easy life!