With an 8% mortgage rate, they would pay more than $650k in interest.One major problem for both buyers and owners beyond mortgage rates is the rising cost of property tax and insurance.

-any major differences among your 4 properties?

There is no "secret" to finding them--- you just have to search, but most major metros have them.

Personally If you like your current residence and hope to stay there long term I would forgo major improvements on my primary and use all investment savings to make you more money and cash flow. 

We don't want to bring on every owner or every property unless they fit within our target market, so, I do the far majority of the sales - this is our check and balance.

I know this is not all owners, but a majority fall into this camp.

In my case I began a “serious” real estate education and experience in 1979 ; by mid 1981 I was able to successfully conclude what for me, at the time, was my first “major” purchase.

It was built in the 2010s and located in an established neighborhood with convenient access to schools, amenities, and major transportation routes.

One you have furniture right there ready to go but if you want to make some kind of major design change, then just let it go and get to work on the new look.

And lastly, market risks and mismanaged funds can also create major headaches, especially for those involved in lending groups.