The guest suite downstairs has a handicap accessible shower with no glass enclosure.

Also, with regard to the Property Management, I would advise you to not fall into the trap of not factoring this in for two reasons:(1) Even if you manage it, you could pay yourself the PM Fee as payment for your time spent on the management of the property; and(2) If you ever decide to hire a PM, you already have that factored into your numbers and so you can be confident that the numbers still workThe biggest tip that I can give you is don't handicap your income potential by failing to account for the base expenses that need to be considered when assessing a properties ROI. 

Will pulling any permits on the existing building call for substantial (expensive) modernization upgrades to Handicapped Access, electrical, plumbing, new laws regarding signage, (FIRE SYSTEMS), etc...(???)

And no matter how handicapped one is, they can find something for you to do from answering the phone to dusting to greeting to matching socks! 

Property in Los Angeles, CA. Tenant who is generally obnoxious but paying on time. Now asking that her mom who lives with her for past 2 years, now can't go up 3 steps to front door due to her knees. Is asking me to i...

I took the 40-hour course and got certified to do lead abatement about 15 years ago and never was interested in getting involved with lead abatement.Lead is also found in older bathtubs when lead was put in the glazing and in ceramic tile.Personally, I think lead is more dangerous than asbestos because lead causes very serious mental issues for children children where they really do become mentally handicapped vs. the b.s. about mold and even when asbestos is present in a rental unit, or commercial building the chances that the asbestos is loose enough to circulate through the air is slim to none, but there are some rare claims.

We are looking for an apartment or house to rent that is handicapped accessible including a roll in 5x5 shower.

I am interested in purchasing a handicap accessible rental.

It can be a great niche, and the worst case scenario is to lease to someone that doesn't need the handicap accessibility but it still fits their needs. 

There are handicapped services that can help people live more normally (if they reach out to them).