I want to buy a 35k-60k home and rehab and rent? Is this a good strategy?

It looks good on paper those numbers, but after working with hundreds of investors, we have found that what looks good on paper doesn't put that $$$ in your pocket. Let me explain.
With the lower priced homes, on paper it shows 15% cap rates. BUT, the tenants that look to rent these properties have a harder time paying, and literally take 2x as much of your time and effort because of constant asking for rent payments, evictions, etc. And on move-out, the repairs needed each time is much greater then someone that is renting a home that is worth 100k-150k that is paying $1,000-$1,500/month.
After you factor in eviction filings, additional work needed to keep tenants paying, vacancies(much harder to rent these to good quality tenants then someone looking to rent a home for $1,500/month), work needed on evictions(which you will have much greater percentage then larger homes), your 15% cap rate suddenly becomes a 5-6% cap rate at best.
Another factor to keep in mind is the properties in these areas do not increase in value. I would rather own a 125k property that is increasing in value 3-5% per year, then have 2 or 3 50k properties that actually lose value or stay stagnant. I know people that purchased in these type of areas(35-50k home prices) 10 years ago that have homes worth the same or less then 10 years ago, plus they get all the headaches of these homes as I described above.