This gonna allow me to increase my budget for finding something that it's worth it.

As @JonathanGreene said, tech has created an environment that allows folks like you Jon, to enjoy investing on your terms so that you do not put all of your eggs into one basket (so-to-speak).

Some companies allow property owners to select tenants and set the screening criteria...We do not - our criteria does not bend. 

Yup, this is exactly the reason that I wouldnt allow delegated correspondent - it's too easy to get greedy and gloss over red flags when you get paid to package and sell risk to your partners instead of bearing it yourself.

We want to be traveling and sailing throughout the year, not just when a job allows me to use my 10 days of vacation.

I would go on furnishedfinder.com which will allow you to look at MTR's in your area, see what they rent for, and see how many are "available now" vs at some point in the future.

However, the LTV that you will be allowed to borrower will be less, in the 60-70% range max.

Actually, to allow access it is an authorization. 

Unlike traditional banks and credit unions, we don't face the same constraints, allowing us to offer more flexibility.

I either jack and jill the bathroom or add a hallway blocking off the bedroom portion to that bath to allow access for the rest of the members.