And that extra $40-$50k a year will be life changing.

Rates will usually be in the Prime + 3-4% range if you are trying to max out how much of a line you can get.  

This is from the BP rental calculator and is exactly what I'm wanting to see, just with extra payments each month. 

Possibly using mortgage/home equity loan on one unit we own to buy an extra one.3.

It’s not always obvious, but you can tell if you are dealing with a custodian rather than an administrator because they will usually have the word “Trust" in their name or they will be a bank or brokerage.

Some of the challenges with ADU is that usually its not a 1:1 ROI.

Wholesaling, for these professionals, is the byproduct of a successful real estate deal finding business, not usually the business. 

Those are always good because your unit can get on the market again faster and the tenant usually leaves in an orderly fashion.NJ is an attorney state.

So I would suggest keeping your STR property geographically close and doing as much as possible to keep your profit% high as possible.As far as the actual house you use, I would just say - be honest, be fair and strive for the best area, most amenities, cleanest house, best communication, and any other extras you can get.

The only extra pay for guests is the surf-rider.