What are some websites that would be beneficial to look at to evaluate properties in the Columbus area other than Zillow?

I've been a developer for 17 years on projects across the US and we do both JV deals and consulting based on what is most beneficial for all people involved.

Is it beneficial or what are the thoughts on that?

It may be beneficial to consult with a real estate professional or financial advisor to help weigh the pros and cons of each option and make an informed decision.

Quote from @Josh Mac: LLC or S-CORPThere is no such choice.  

Between multifamily units and single-family homes, the best choice really hinges on aligning with your financial goals and investment strategy.Multifamily properties can be a great kickstart, offering the convenience of managing all your units in one location.

This can be very expensive and is usually the worst choice because you can't justify the cost.2.

Innovations in construction technologies are also enabling faster, more cost-effective building processes, opening up new investment avenues in developing areas.The Enduring Value of Real Estate InvestmentReal estate remains a preferred choice for investors seeking long-term value.

Well, the only way anyone will know if there is mold is if the tenant reported them to the city, sure then no choice.

I wish you well in making your choice and that you succeed in acquiring your first rental home by 2024!