I'm looking for long-term wealth accumulation and for the near-term tax benefits.I'm hoping that I can extract some good information from everyone here and hopefully contribute some of the same at some point.

This your last statement key here is the point, and why they are cool , then you have to extract and reverse-engineer the statement.

If you have the capital to buy and conduct rehabs on somewhat distressed properties with deferred maintenance and sub-market rents then there is a lot of upside potential to making improvements and raising rents/extracting equity to move on to the next.

The $2.06 trillion increase works out to about $991 billion a year, or slightly less than the pace Obama had set.Trying to stay away from being political and therefore just a statements of facts:Obama had the Great Recession to extract us from which was done largely by spending money (business bailouts, infrastructure spending, etc.)Trump had Covid and the resulting economic issues that was dealt with largely by spending money to ensure individuals and business could possibly financially survive.It is easy to see how both presidents could have increased the debt so significantly. 

I then invest the extracted equity into 2 properties with each of the new properties then having a 5 to 1 value again. 

In such a case, the only way to reduce interest paid and "accelerate" the loan is to go in with a shorter term or make higher payments using 0% funds (you pay no interest on it).In this case, if I were guaranteed a 4% interest rate, I'd opt for 15 year amortization so I'd be able to refinance sooner and extract my equity, if that were a key item in my strategy.