That leaves you with equity of $780k, of which you used $180k for an education and renovations. 

If either of those questions is answered with "yes" then you may have some leverage and might have to get a lawyer involved to motivate the other owner.

Are you assuming it’s 100k leveraged real estate or 100k equity?

If you are-Not pounding the phones calling sellers daily-Not reaching out to peers daily for insight and connection-Not educating yourself through webinars, books, and commentary regularly-Not attending conferences where you learn industry trades and secrets

No worries though, the education you will get will be well worth the price.

Especially with the infamous "crash" coming soon over-leveraging and/or buying for appreciation is very dangerous right now.

Education goes on forever. 

Just lots of perseverance and self education.

So in my self-education on notes, of course learning about that the interest portion of payments are taxes as normal income (assuming no self-directed IRA situation). 

Besides the bugs and the gators and the subpar education system (sorry, but it's true), it really comes down to we "don't know what we're really buying in terms of exposure to future flooding events".