You can't rent out a PO box and live there.And yea that sounds like a huge red flag to me. 

As I build my career as an agent, I’m also passionate about real estate investing, specifically with a goal of purchasing multi-family, buy-and-hold properties where I can live in one unit and rent out the others.I’m here to network, learn from experienced investors, and contribute to the community.

When we start asking questions, and having friendly conversations they get it figured out.But hey...google knows everything. 

I live in the Lancaster PA area.I am new to real estate investing and looking to connect with any local investor.

another property to the portfolio, and a continued relationship with a live long client Lessons learned?

We purchased it with the intention of living in the Ground floor + BSMT apartment and renting the 2nd floor apartment.

I've done 7 myself and lived for free or better in every single one.

The investors get much more profit out of the property.Recommend having a very open conversation with your FIL, expressing your interest in potentially taking over the property from him.

Me and my partner moved from Utah to Maryland for school recently and we have a townhouse that we are looking to rent. we are currently remodeling and changing a few things before renting. what are the first steps to change my primary to a rental I lived there for about two years.

For example, they won't need to cover your personal belongings (furniture, clothing, etc.) because you won't be living there.A landlord policy should cost about the same as a homeowner's policy; it just changes what is covered.