The question is pretty simply stated, aspects to consider would fill volumes of books, but simply answered my reply would be when indicated economic conditions warrant with respect to supply and demand. :)

The son already knows his mother will need to supply all the tax, income information, etc, as the bank will only deal with the owner of the loan, and she is more than willing to do this.

It's simply supply and demand...there is a lot of money there and very little in the way of housing.

What's my rental competition, what do similar properties rent for, what's the school district like, how's housing demand/supply, how's the job market, etc?

I would just remove the screen door and not supply new one.

Realistic projections for time management (production) is a key, having all supplies on the job site when required and if Murphys Law occurs as it often does you can work around it.

Properties are very cheap now because of limited supply of buyers with cash.

I would say any state that has high demand and low supply of places to live.

If you want to supply materials , thats fine with me , I will still make the same money at the end of the job .

I took lots of notes, and my realtor works with the HOLD worksheets from the Keller book, [i]HOLD,[/i] so he supplied those with the listing sheets.