Here some things to consider:

1) Do you both want to fill the same roles? Ie: both treat patients, both do the marketing, both be the visionary?

Or Are your strengths and interests complimentary?

2) Should to have a trial period and need an exit strategy if it doesn’t work or feel right.

Set expectations, have a “safe” word

Should have an operating agreement that deals with dissolution of the business, and depending on the laws of your state, your business may belong to your partner in marriage whether they work in the business or not.

Book recommendations if you do decide to run your business with a partner

E-myth by Michael Gerber

And

Rocket fuel by Gino Wickman