What if I have a quadriplex that I bought for $200k and the rents are now $4k/mo how much is the property worth?

It may be worth taking that when you find a real estate attorney and having them look over it.

If you net $700K, that could put you in a position to buy around $2,800,000 worth of real estate.

You can use the costs of classes on a down payment and the time in classes can be used finding properties.All my high net worth RE investor clients don't use their degrees at all.

Even though you're in TN, it's worth checking out. 

Amidst a significant downturn in commercial property values, private investors (particularly high-net-worth individuals and family offices) are seizing the opportunity emerging as the dominant force accounting for 60% of deals over the past two years.

You can likely pro-rate the rent, but you have to decide if its worth the hassle and pushback once you do it.

Totally worth the $15-$50 per month it costs.

Vacant land can literally be worth negative money.

What is the house worth?