I’d suggest negotiating the furniture into the sale and then slowly swapping pieces later as you personalize the space.

Give them piece of mind.

I wrote a couple pieces on student rentals you might find helpful.

City planner, building department, engineering technician (for second address), public works (second water meter if we want go that route) and Electrical Utilities Department will all be involved on new construction and all will want to get their piece of the pie (at least in my city).Additionally, if we want to have a separate water meter and the ADU was plumbed separately a second water meter could be installed.

You take every piece of information and spin it one way.

From what I’ve seen in Forbes, the infromation on market trends can also help pinpoint the best neighborhoods.One last piece I’d consider: do some legwork on rent comparables in the area so you’ll know your break even numbers from day one.

Its more like 98/2 with an additional 5% saying they do stuff so they can get a piece of someone else's hard work while they have not done anything and live in their mom's basement.All that said there is value well over the cost for those who apply themselves to deriving the value. 

There are a lot of pieces that go into the deals and giving someone a percentage of profit will start to become less of a value than what it was at the beginning. 

So someone takes a most critical piece of wealth they have saved up for the golden years and plows it into one of the most riskiest asset types out there.

I, personally, would be stressed about all that cash out of pocket though and would sell for piece of mind.San Diego, CA 2021 Real Estate Market Appreciation & Housing Market Trends - NeighborhoodScout