It will drastically cut your available options if you look for a place that already has a ramp built, etc. It may be worth considering just buying a place and having a ramp installed for you.
Do you want to rent or buy? If you need further help, please contact me. Thanks,
You will find there is a great selection of property in Portsmouth, NH, you should be aware that prices in New Hampshire have held very well during the real estate correction that the USA as a whole has experienced. Meaning you may find prices high relative to Arizona. Your best bet is to find a Realtor who services Portsmouth and go from there. My company has offices in Portsmouth, Hampton and Exeter, so we could help you if you desire.
Find listings for Portsmouth in my website, http://(www.daneandsandra.com)below.