The transfer may trigger gift tax reporting if the value of your share exceeds the annual gift tax exclusion limit ($17,000 per recipient in 2023).

An example of that is tenant must pay for additional electric over flat fee / flat limit since now there is 2 occupants in the home instead of originally one.

For added liability protection, consider setting up an LLC for the rental, though this may have limited impact if the mortgage is in your name.This post does not create a CPA-Client relationship.

Off grid sounds cool to some, but it really limits your potential guest pool.

The fact of the matter is, when you sell or buy a business, you are entering into a business partnership with the person on the other end of the transaction.Yes, the partnership is limited (partial buyouts aside), but what you will be accomplishing during your time together is significant.Due diligence can take months.

In our still relatively limited experience, seller financiers are usually looking to get a higher asking price in exchange for the favor of the private loan. 

Cozy has been acquired by apartments.com, and will not let me sign up for cozy, and the functions seem limited.

I would recommend considering conventional financing until you reach Fannie Mae's limit of 10 properties, then consider either a portfolio loan, and start your race to 10 again, or look at DSCR at that time. 

Your income isn't high enough for it to make sense as a rental and the closer you get to your residence limit the greater pressure you will have to sell it before losing your exclusion in whole or part. 500k right now can make $15k per year income with zero maintenance or tenant risks. 

You have a limit if it is an ADU.