I did the same thing that you are trying to do. This looks good on paper but lots of negatives floating around in real.
I was lucky, got no non-sense landlord,allowed me to stay for longer period, rent did not increase much in my area(savings increased).
Currently I have inflows from investment much greater than my emi outflow.
Lots of pros if things go very well.
Don't have to worry about losing job.
Don't have to take L from toxic people
Family is secured
Mental peace
You can check about livability of area first hand by staying on rent where you are seeking to purchase home
Cons
All problems related to staying on rent (landlord, rent increase,have to ignore naughty relatives taunting about not owning home)
Need to get better increments for increase in savings
Don't leverage much though after accumulating assets