If there's an argument later, you've been paid in the meanwhile and if mom comes back and can pay rent, no loss to you either way.

Solve their problems, don't remind them of their loss, and don't give up after one contact/mailing. 

If their properties did not cash flow they may have been forced to sell out at huge losses or walk away with their credit in shambles.

This is where tortuous conduct arises, causing a loss for another party and where the seller sues the buyer for damages (and don't forget the damages to the seller's credit standing which can be very expensive.)Now, the remedy:You will need to obtain the seller's consent to assign your obligation to pay!

If you close on any propert, get an insurance policy for it to protect you if a loss occurs.I am 59 years old and I found BP about 7 months ago and I am still trying to decide what to do.  

I'd be happy to get out at break even, and would even take a small loss.

Working closely with employees in our local branch, with whom I have worked closely with over the past few years, went above and beyond in their efforts to help defray our costs and minimize our losses.

If you have any questions relating to construction OR navigating a property insurance claim after a loss, let me know.  

If the result is negative (a loss) and your personal gross income is low enough, you can subtract the loss from you personal income.This is no different for you than it would be if it was a regular tenant living there.For you brother it's going to be a little different, and I'm not sure on that.

Sure, you might take a bit of a loss your first time, but never let that initial loss scare you away.