So she’d probably want 9%. 

You also could probably work with any number of the CPAs on BP who work remotely if you feel comfortable with that.  

That's probably changed. 

If you have a 20 year timeline, I'd probably recommend B areas closer to the city or in the better school districts in the suburbs for the highest combined ROI over that time period.Right now you can expect to find decently turnkey multis for about $60-$125k/unit usually all at least hitting the 1% rule in that range.

And what today - probably near 8%.

This structure probably just means more grey area which means more legal fees and perhaps less chance of either of us being covered at all.

Probably need to add at least heat for the ADU to be considered livable space but that isn't a huge deal, if you can make it work great. 

He also told me he probably wants to re-negotiate the balloon payment because he doesn't want the bulk of the capital gains all in one year.

In your case, you are probably better off buying a break-even deal in Tampa then a deal with $200 cash flow OOS.

It will be remote, but since you live there now, you probably already have connections who either already know the house or local friends to find you good people to service things as needed.