OK here's the 411:

My MIT is divorced, owns her house, and lives with her other (also divorced) daughter and granddaughter (who is 11 yrs old) in the house. She does not work, never has, and does not have much money. Her daughters (including my wife) work to support them all. She does watch the 11-year old while her daugter is at work. She lives in Piura, Peru. She wants to apply for a tourist visa to visit us for a couple of months.

If she were to obtain a B2 visa, she would be staying with us, of course, and would be provided for during her visit. We have written the invitation letters, I-134 forms, etc. and sent copies down to her for her interview.

Can anyone opine upon her chances for obtaining a visa for visiting us under these conditions? Anyone have any experience regarding the Lima, Peru embassy and tourist visas?

The not having a job could easily be an issue. While she owns a house, her daughter and granddaughter live there which could either work for or against her (the rest of her family lives there, why would she jump ship? vs. there's other people living in the house who are supporting her, who is to say she'll return?)

I know various people who have obtained tourist visas (my mother in law and husband for one, along with my sister in law who has made it to the USA twice with her's, my mother in law's sister who doesn't have a job either, my husband's cousin - though some of these people are part of the reason it's so hard to get a visa - my husband and his mother have been here for 5 years (my husband's green card was just approved, though), and his cousin basically packed her life up and moved here and somehow still got into the country) - but it's really all up to chance. I would say, try for it, but don't be surprised if she gets denied.

If she does get it, remember she also has to prove ties to her home country at the POE.