You can not partner with relatives or have them do any work on or stay in your properties. 

The park is out state and my partner owns two other parks in the state.

My partner and I plan to purchase 25 houses in the next 4 years. 

Great tools that get updated regularly.I am on the lending side of things and would be happy to hop on a call with you anytime to discuss financial strategies and help answer any questions you may have about nearly any loan product available to help you on your journey, even if they are not products my capital partners offer.We are all here to help you learn and grow.

Equity Partner BuyoutConsider an equity partner to help fund renovations in exchange for a share of the profits, reducing your risk and investment.STR seems like a solid option, but these alternative strategies give you flexibility depending on how things play out. 

BiggerPockets groups —lots of solid resources and a supportive community here or at local REI meetups; you'll find folks willing to share tips (and maybe even some potential partners).Here are some other strategies that could also help you scale faster:Partnerships/Joint Ventures: Teaming up with others, especially experienced investors or people with capital but limited time.

These are some options that I am considering. 1) Getting an LLC and a Joint Venture agreement to partner with a long time friend of mine but somehow separate our business from our individual marriages?

Partner with an agent, who hopefully you've found by this point, and get into some duplexes for real.  

Do you need to partner on the deal? 

Next step Find a local Multifamily Investor group and go meet members and partner up with experienced people.