Identical brother was not in court to testify.There was the widow Brown case where an elderly woman, possible with dementia, did not understand the consequences of not paying the taxes.

*And yes I checked if there aren't any legal privileges for the elderly that will put me at a disadvantage, and found none what so ever. 

Two elderly relatives (a couple) are having serious health issues.

I greatly expanded my Greek skill set and became a self-taught handyman working in the kind of elderly properties that are so common here in the 'Burgh.

Carrying charges, such as interest and taxes, that you pay to own property, except carrying charges that must be capitalized under the uniform capitalization rules; Research and experimentation costs; Intangible drilling and development costs for oil, gas, and geothermal wells; Exploration costs for new mineral deposits; Mining development costs for a new mineral deposit; Costs of establishing, maintaining, or increasing the circulation of a newspaper or other periodical; and Costs of removing architectural and transportation barriers to people with disabilities and the elderly.

If an elderly person leases from you, change it out. 

Such as my house isn’t equipped for an elder tenant, Protected Tenant Law (over 65?)

I was once told by a wise elder that you should never let old licenses expire; you never know when you'd like to use them again!

depends on the demographics.If its a retirement neighborhood, lots of elderly people some may find it a tripping hazard or a pain for walkers, wheel chairs etc...Down here in south Florida many older folks would not buy two story homes because of having to trek up and down, and we have lots of older folks.Sometimes the elevation difference can be partially minimized visually by using creative threshold transition pieces.

It is a FSBO that is owned by an elderly couple who are very motivated to sell.