Warranties and managing SFH in $2.5-5k a month range

[Samuel Mes]

1. Do you use a warranty company for appliances like A/C or plumbing? I'm finding they are overbilling on repairs , finding out of pocket expenses and contractors I know personally could achieve similar prices without the hassle or monthly premium. 

2, What number of SFH are you (as an individual, without a company) capable of personally managing? Does it create issues if you delegate it to a property manager (less personal at this price point, slower)

Thought I would ask if anyone in this niche knows something about this. . .