I’ve been subsidizing the living expenses of my disabled mother for the past year - it’s a strain financially.

Have a 76 year old Disabled lady living there with her two in and out of Jail Heroin addict Gangster (literally) Sons. 

I'm not a 1031 exchange expert but have bought and sold 6 properties this way in the past 2 years (1031 exchanges)Would be glad to help how I can - can also give you some tips on what I've learned may be beneficial for estate planning as far as navigating Assisted Living/Medicaid HCBS etc - (Tip - unless you want your mother to go private pay in assisted living and drain all your money you may want to start getting assets out of her name now - guess it depends on where she'd want to live and how much you want to spend) -- Anyways we've been trying to become experts at our facility on HCBS and the different waiver programs (specifically Physically Disabled - which your brother may fall under at some point and Frail Elderly which your mother can fall under at some point)

You are still held liable if they commit a crime on your property. 2012    Continuing issues with substandard housing conditions Rental Registration & Inspection Ordinance SMC 22.214 revised program developed with input from local rental owners. 2016 Significant rate of discrimination based on use of Section 8 voucher, disability and familial status found during 2015 testing program Source of Income Ordinance and “First in Time” rule SMC 14.08.020 amended to include source of income as protected class.

I am a disabled veteran and I am looking to start finding homes and flipping them with the help of my step dad.

It's the best loan, no PMI, no downpayment, and in Texas if you are disabled they will even cut your property taxes. 

...possibly an elderly or disabled person?

From one former infantryman to another nearly all of us have a bit of tinnitus (10% VA disability) and degenerative back disease (back arthritis).If you have at least 10% disability you don’t have to pay the VA loan funding fee which is over 2% ($4,000 for a $200k Loan).

.---- From what I understand the special protection (including elderly and people with disability) only applies to contracts older than 1990.

I am also a 20% disabled service member.