What is the most logical way to raise enough capital to purchase without having to utilize my personal credit and without winning the lottery? 

If you won the lottery and wanted to buy out B, you could purchase all or part of their share and increase your ownership percentage. 

Yep, if he has a small side-gig business or a living trust, those legal entites can also contribute to the max.You can do a Roth with this money only if it was earned income as contributions can come from only two sources outside of the Roth: earned income (not dividends, interest, rental payments, lottery winnings, black market dealings, etc.) or rolled over from another retirement account. 

Here was my response:________________________________The only investment that is guaranteed to make you more wealthy by the end of the year (and I don’t guarantee you will have a ton of money by then but I will guarantee that you’ll be further on your way toward a lifetime of happiness and wealth) is an investment in your own personal knowledge and skills.Why do you think of the people who become relatively instantly rich (like lottery winners and pro athletes) end up spending or losing most of it?

There's a very short mention of this in 4.3 Million Reasons Why Multifamily is a Buy in 2022, as I recall the person being interviewed referred to it as "winning the lottery". 

Generally this happens when a person that normally doesn't have any money comes into an inheritance or maybe a lottery winning or proceeds from a lawsuit or something similar.

How many people can you help after a disaster if you win the lottery and are not dealing with a total loss?

Your son hit the Parent Lottery big time!!! 

Just like you can win the lottery.. its simply not that easy or frequent that those with no expreince or money behind them take off and become uber successful at this game. 

In our county, the treasurer holds a lottery, then each property is offered to the person whose number is drawn to pay the delinquent taxes.