jlynn,
Welcome to the forum! And yes, we do live in Luzon with an adequate source of income, but I wouldn't recommend in trying to live here on $1,500 a month or anywhere else overseas! I myself surely wouldn't, if I were already living in the U.S.! IMHO it would not be enough to live on especially here in the Philippines, because you have to factor in what benefits you will not have available to you here versus what the U.S. has to offer those on disability and also the cost of immigration fees to stay longer, let alone medical costs if one becomes seriously ill here and what about rent/utilities? I just paid our electric bill a few minutes ago on-line, it was P16,780.00, because we have visiting relatives for the past month until the end of May and the weather has been pretty warm lately and the two A/Cs, one 1HP upstairs in our master bedroom and the other 2HP downstairs has been on everyday except late at night! Local and international transportation isn't getting any cheaper either, let alone food costs! A one-way airline ticket back to the U.S. now cost as much as a round trip ticket and a USDA steak here is almost non-existent and if one is a vegetarian, fruits and vegetables aren't getting any cheaper here either!
So, if you feel lucky, confident about landing a good paying job here and have a sizable nest egg in case of emergencies, then go for it! Good luck! You'll need all the luck in the world! Some do make it who learned to live like a local, but others did not who could not adapt to the ever increasing cost of living, culture and lifestyle here!
You'll probably get a lot of differences in opinions if one can live on $1,500 a month here in the Philippines, because it's all about each to their own opinions, POVs and personal experiences in life! Me, I only give my personal experiences in life and my honest opinions! So, take it for what's it worth even it may not be what you want to hear! I didn't say it was impossible, I just wouldn't recommend it! It's all about the pros and cons and how persistent one may be to change his/her way of life hoping for it to be more alive and or full filling instead of having the same lonely or boring life in the U.S. if that be the case! So, one takes their chances against all odds if one wants to take a gamble! All I can say is good luck!