Should I put in special tubs/showers or just hand bars, and provide a shower seat? 

No matter what market you select, you need to spend a lot of time there getting to know the market and the “players” in that market.Which of these markets can you get to easily and often?

You can easily do this on a spreadsheet, and it will take less time to track than finding and learning new software.

If you can't meet all of the other code requirements easily, it almost certainly wouldn't be worth the hassle to add another bedroom to your space.Bedroom Access. 

I still believe he’s better off with someone licensed in that seat to avoid any potential fair housing or other liability issues that can occur.

The panel should come off easily. 

The owner of the property is completely uninsured, the corporate veil is easily pierced.....and now your potentially personally liable and uninsured for this problem. 

But, can you then EASILY find a Buyer who will pay you more?

These specialized companies, easily found online or here, will create your company's SD 401(k) plan.

You can quit claim them very easily.