She refinanced the mortgage twice between 2005 and now. Did she refinance two houses or refinanced one house twice?
If she has not missed a mortgage payment since her last refinance she can do a mortgage only refinance on both her properies. Perhaps with the interest rate being lowered in the last two years she might get a lower monthly payment.
To do this mortgage only refinance she should contact a mortgage broker, inquire about the mortgage only refinance.Doing this type mortgage all she will have to do is present evidence that she has not missed a payment in the last two years or so. Most requirements are one year.
The other thing you might do is contact her current mortgage company, Indy Mac's Loss Mitigation Department and see if they will do the same mortgage only refinance. Since she refinanced two or three years ago there is a possibility that they mitght use the same appraisal. They sometimes do, and since the drop in the housing market they might require another, but it would not hurt to ask if they can use the same appraisal.
Make sure when you contact them that you outline any potential problems your mother might encounter in the near future with the increase in the monthly mortgage payments.
My first choice would be to do something with the mortgage company your mother is currently using. Failing in them taking positive action, then you might try another mortgage
The lenders are now looking at ways of helping their clients, more so now than in the past.
I hope this has been of some use to you, good luck.