Early on (1978) I joined a couple of newly minted Real Estate Investor Association groups.  

Curious...Thinking about joining today and hitting it to see what happens.

Generally speaking, other than a fire wall and additional sound proofing, what other costs come into play w/ duplexes or mfh in regards to that joined wall?

At some point in the future I'll likely join the group of agents that make a million per year. 

Joining Bill as keynotes will be Kenneth Bedwell of STR Insights and Matt Curtis of Smart City Policy Group plus 25 exhibitors and a morning session to meet local cleaners and similar service providers.Less than 300 tickets are available, visit http://www.PoconosSTRConference.com to learThe Poconos STR Conference is a partnership between The Poconos Association of Vacation Rental Owners, the Pocono Mountains Visitors Bureau and the Pocono Mountain Association of Realtors.

Obviously, based on my relationship with the company, I'm not unbiased, but most people here on BiggerPockets know that I value my reputation above all, and when I agreed to join FTF as an advisor a couple years ago, it was because I was very impressed not only with their business model and underwriting guidelines, but with the CEO (Matt Rodak) and the rest of the management team.I have no requirement to invest my own money on the FTF platform; I do that simply because I like the platform, like the deals that are being funded and find the returns to be nearly as good as the private lending I do, but without all the overhead. 

Investment Strategies:Columbus offers opportunities for various investment strategies:- BRRRR: Look for undervalued properties in up-and-coming neighborhoods- Fix & Flip: The median days on market is 24, indicating a relatively quick turnaround for renovated properties- Rental: With a high percentage of renters, there's potential for long-term rental investmentsTo get started, consider joining local real estate investing groups, attending meetups, and networking with other investors in the Columbus area.

If you haven't noticed, when you ask about investing out-of-state the Columbus mafia joins the chat and turns it into a joke, but other than that this is a good place to start (and Columbus is a good market, but seriously...).Your post is a little disjointed though.

Begin by networking with local real estate investors, attending industry meetings, and possibly joining real estate investment clubs.

Just by joining BP, you're already making tremendous progress-- lot's of great ideas and people to network with.