You are looking into fourplexes to reduce the risk of vacancy as you likely will have paying tenants at all times however the inventory of fourplexes is low in your area of Ashland, KY and you are considering duplexes.I think your strategy is wise.

The reason I posted this question is to see if any specific areas could be improved by technology that can help you be better at your business. we don't live in an ideal world, and sometimes the existing tools, may be useful as we are used to using it, but they arent very optimal.The best way to look at it is to see if there are some problem areas that you think if addressed via technology will help you be more efficient and reduce your investment risks. 

They follow a straightforward process that has proven successful throughout history: increase earnings, reduce expenses, save as much as you can, invest as much as you can, and wait patiently. 

But the reduced complexity of the single member set up and the improved liability coverage that is similar to 2 member LLC guided us this way, as well as others good insight.

Did you buy "points" to reduce the rate margin?

Could be a realtor or other vendors who want to earn a fee for the service. 

Ask anyone with investment property and they'll tell you it's not passive.I earn enough from investments that I could be financially free for life, assuming nothing major happens.

Precisely how the entity structure will reduce their tax burden?

.($175,000 / 20% = $875,000)Of course, the buyer can put less than 20% down and pay private mortgage insurance, but let’s say they really want to put 20% down.As a seller, you have now reduced the pool of buyers who can pay $1M for your home since the buyer needs to save more money to reach a $1M purchase price.So, would you rather make $875k and “save” money on commission, or make $975k and just pay their agent?

Have you modeled what appreciation looks like given the reduced claim to the underlying land?