Both properties owned free and clear by our mother but my brother has the power of attorney.

Quote from @Greg Powers: A New Hampshire Supreme Court ruling last week prevents municipalities from restricting short-term rentals in the state, so this should be a "safe" place to pursue STRs. 

This means I can’t bump up my purchasing power.

It's built on top of G Suite so if you are using that it is really nice.ProsperWorkshttps://gsuite.google.com/marketplace/app/prosperw...G Suite in general has released a new tool called App Maker that allows you to build some really powerful applications on top of it.

It's great to hear that you've been diving into real estate books—knowledge is such a powerful tool in this field.

Contact a lawyer to specializes in elderly or people with memory issues and ask them what their thoughts are.As for why the property was sold, that is a decision up to your mom and whoever she gave power of attorney to. 

Quote from @Bobby Burris: Here's a guide that describes what good cash flow looks like and how to analyze a property.https://www.biggerpockets.com/blog/rental-property-cash-flow...Read a few books on real estate investing to learn the power of leverage.

Your debt to income ratio will be negatively impacted affecting your buying power/ ability to get new loans.

Powerful, grounding, responses here.

Tim Gordon Hey -- more power to you.