I'm have been asked to enter into a partnership with an experienced investor, and I'm not sure how to or the best way to structure a partnership.

You may want to work with an experienced contractor and/or other experts who have done this in the past.Disclaimer: While I’m a licensed attorney, I’m not your attorney.

I'm a little thin to do this project myself. Would love to wholesale it to someone. It should be about 60k profit, about a month and half, 2 months conservatively, on rehab. Deal is in northern california and looking ...

Isn't it like you're suggesting somebody to do something (investing in Costa Rica instead of the US) while you (the experienced investor in Costa Rica) does the exact opposite with your own money?

I am now currently a Superhost my first Airbnb has over 50+, 5-star reviews!!! 

However, when I reviewed the property information on the PVA website, the records indicate it is a 3-bedroom, 2-bathroom property, excluding the 2 bedrooms and 1 bathroom located downstairs.

I'm afraid if you don't get a handle on it or let them go with a referral it could be detrimental to your business and could quite possibly lead to negative google reviews. 

Working with a CPA experienced in real estate transactions is essential here.If I were you, I’d call some attorneys on Monday if this is something you’d like to move quickly on. 

Very interesting review.

For a tax specialist, look for someone experienced in real estate investing to maximize deductions and plan for your goals.