For the existing home: I have to install a separate heater that is thermostatically controlled from inside the apartment - I found a nifty little unit that will do the trick for under $300.

I will be installing these myself.

I have heard of thermostats that you can install that have a minimum temperature setting (say, 50 or 55 degrees F) to automatically turn on the heat even if the tenant doesn't have the heater on, and we'd like to put those in to prevent frozen pipes. 

I wouldn't recommend that you DIY this.

So, determining clear title isn't a DIY project in most cases although a savy investor can investigate a lot themselves.

Fake financing is allowing you to pay in installments but entirely by the delivery of the property as opposed to paying 100% at the signing of the contract!

No failures and always inspected and approved by local jurisdictionsCompetent installation is a given.

They also have a great website that is regularly updated.I'm hoping to publish a book this summer that will provide nearly 100 forms and lots of practical advice for DIY investors.

If you have shower doors remove than and install curtains.

There are also a lot of great companies that don't put their products on those platforms, so there is something to be said for working with an agent rather than DIY.