I am seeking advice of what to do with the money from someone who exit the business and successfully got similar income and appreciation of capital.

One of the biggest factors in successful flips is building a strong team: contractors, agents, lenders, and property managers. 

The resources and books you mentioned, like the BiggerPockets Ultimate Beginners Guide and The Book On Rental Property Investing, sound like excellent starting points.Prioritizing financial stability and eliminating debt is crucial, and I agree that a solid financial foundation is key to successful investing.

To maximize your chances of success, recommend sharing that and the percent increase in taxes & ins with tenant and asking them what they think a fair increase is.- If they say $0-$50, you'll have to get rid of them at end of current lease.- If they are more reasonable you may want to accept if for now, but let them know you'd be doing regular increases to get the rent more inline with market rent.Too many newbies here will tell you to get market rent or get rid of the tenant.

The platform aims to provide investors with everything they need to run and scale a successful real estate investment business in one place.

After reading Brandon and Brian's book, The Multifamily Millionaire, Volume II: Create Generational Wealth by Investing in Large Multifamily Real Estate, I'm a bit puzzled as to if the GP's must have real estate experience, or if someone can connect enough professionals/companies on their team to execute successful investments.

These are some of the most successful people; CEO’s, tycoons, celebs, old and new money and investors on the planet.

The key to success lies in ensuring you're entering the market at the right value.

At this point, I'm planning on contacting the county and the auditor, but before I do this, I wanted to find out if anyone on here has had a similar experience in Cincinnati and if they've found any success in appealing property taxes.With gratitude,Trevor

You snowball plan has a very high success rate.