Vinyl is a pretty much industry norm cheap and durable.

See an Elder Care Attorney, get Durable Power of Attorney for Asset Management.Does she have an existing will?

If your intentions are to rent to college student, then I would not encourage you to put in a high end products but items that are durable and can take a lot of beating. 

As a buy and hold, I like the multifamily (but more power to you if you have a good cash flowing, durable, low maintenance single family), but then on appreciation and marketability, it is hard to beat the well located single family...Not to get off topic, but some people even like condos (I have a couple as marginal rentals and a few others on BP do, too, and some of the above apply but issues like dues and assessments are issues as is HOA red tape)..Lots of BP forums on this topic from the past, too, I see for you to mine for more details.Best of luck

Porcelain is the best for floors because of it's durability. 

It is far more durable than either carpet or wood laminate products.I wrote a blog about SEC 8 if you want to take a look.https://www.biggerpockets.com/blogs/9232/blog_posts/55313-intro-to-section-8---your-perceptions-vs-my-realities

Consider putting down a hard more durable type of flooring instead of carpet.

@Brent Rogers I would go with anything that is durable considering your clientele.  

Carpet locally is gonna be about $20-25 per sq yard for durable stuff suitable for a rental, plus installation.

The floors in the Kitchen, LV and hallways were recently upgraded to CoreTec Plus Vinyl Plank to enhance durability and give it a more updated look: