The first step to getting your landlord to install a handicap lift in your building is to write him a letter with your request. He may be willing to work with you on this.
If you install a built in the landlord will ask you to leave it or replace the cabinets it replaced. Portable sounds a better deal to me.
$1000
Your landlord has the responsibility to provide you with habitable premises. If there is another usable sink in the house, it might not be required for the landlord to install a sink downstairs. Also, it is required if the landlord promised or implied that there would be a sink in that bathroom.
Some medical insurance will cover the cost of a handicap tub if it is a medical neccessity.
yes
You can install a portable web browser because it runs on all platforms. Even if you change your OS, you can still run it.
Installing a handicap bathroom can be done easily and cost effective using modification instead of a full remodel.
Handicap lift chairs are quite hard to purchase commerically. The best bet is to call a company that specializes in the product and have them install it for you.
Hire an electrician
All bathrooms must have sinks inside them. If there is not one, your landlord will be required to get one put in for you.
No, upgrades belong to the landlord.
yes