And we usually replaced windows/storm doors and HVAC systems within a year of purchasing older units, and this has helped as well.

Start the eviction process.

I have a followup question - I will realize a lot of capital gain from this home in Idaho, so I think unless I purchase a new primary residence I will have to pay that capital gains tax. 

If your mother does not want to carry the note long term, there are GSE renovation loans that can be used for both purchase, rehab, and permanent financing all in one loan.

I recently purchased a burnt building and I'm eager to rehab it.

So, the question is not whether to invest remotely, but where to invest.Investment TeamRegarding properties in distant cities: While books, podcasts, seminars, and websites offer general knowledge, you'll ultimately purchase a specific property in a specific location—each with its own unique conditions.

In genral they are not patient enough to delay purchasing shiny things.

The ONLY reasonable deals are:Appliances when purchased if you have a retailer that offers unlimited repairs/replacement for 5 years for 10% of price.

Are you purchasing a fix and flip property and looking for a hard money loan? 

These are great questions and a great idea to do some due diligence before the purchase.