You could also get involved with your local REIA and try to partner up with a more experienced investor, depending on what you can bring to the table, in terms of value add. 

Any suggestions or others that experienced out of state investing?

Out of state investing is great, however everyone out of state is incentivized to take money from you hence if you are not experienced or know what you are doing, people can easily take advantage of you.

What I'm going to say is I see people who have experienced success in this arena, analyze many practice deals before they put their money down on the table for a real deal.

The core market (hole of the donut) is booming and lots of young people moving to the city center and new apartments, condos, restaurants, amenities etc.Alot of the sun-belt is experiencing alot of net-migration...versus at least some cities in the Northeast not so much. 

Hello everyone, I am a new user on this platform and joined because I am interesting in investing in multifamily and connecting with experienced investors.

Key Principles:Mindset and Goals:Think Long-Term: Real estate is a long term play in most cases Set Clear Goals: Define your financial goals and how real estate fits into your overall plan.Finding the Right Property:Location, Location, Location: Invest in areas with strong economic fundamentals, good schools, and low crime rates.Cash Flow is King: Look for properties that generate positive cash flow (rental income exceeds expenses).Consider Appreciation: While cash flow is primary, also consider properties in areas with potential for long-term appreciation.Financing:Get Pre-Approved: Get pre-approved for a mortgage before you start looking at properties.Leverage Wisely: Use leverage (debt) to your advantage, but don't overextend yourself.Consider Creative Financing: Explore options like seller financing or partnerships.Building Your Team:Real Estate Agent: Find an experienced agent who specializes in investment properties.Property Manager: Consider hiring a property manager to handle day-to-day operations.Accountant: An accountant can help you with tax planning and financial management.Attorney: Consult an attorney for legal advice and contract reviews.Managing Your Investment:Maintain the Property: Keep your property in good condition to attract and retain quality tenants.Screen Tenants Carefully: Conduct thorough background checks on potential tenants.Review Your Finances Regularly: Track your income and expenses and make adjustments as needed.Example Action Steps:Set Your Goals: Define your financial goals and how real estate will help you achieve them.Educate Yourself: Read books and articles about real estate investing.

I really don’t want the seller to just walk away because the U&O is too difficult (I also went through this process about a month ago with another home.)Should I call offer some advice/contractors number to hire to get it fixed up, go get a lawyer involved, or do I have other options?

There are many more reasons why you may be having difficulties, your input from here will help us better answer your question.

The average consumer here would probably never realize this is done, but I have experienced it first hand on multiple projects.