I'd like to be 1st in line for 2nd ownership.

Bottom line is air bnb is so completely anti host.

Your best bet is likely a local bank.

I don’t have cash but I know I can get approved for a line of credit that would cover my down payment.

You'll have 24/7 access to the house (you'll be lining in it) and you can see how others are treating your property.

But if you have a hard time getting a portfolio loan then you might try getting a business loan or a business line of credit that is secured by the equity of those properties.

James Lindall I think your best bet might be a Line if Credit .

At some point I feel that a line needs to be drawn.  

In other words, if you were going to flip or do any other type of REI with a shorter time-frame, you have the option to draw money from the line repeatedly.

On the surface it may seem like the same in terms of rental income but when you factor in vacancy and repair costs (due to lower quality tenant), and then add the higher tax rate, there is probably a noticeable difference to the bottom line.