I want to purchase another home just to rent the rooms.

[Chris Le]

I'm a young landlord 26 Y.O., and I live downstair with my wife, and we rent rooms upstairs for my tenants. The rent covers the mortgage. I was wanting to buy a second or third home this years just for renting the rooms out. I usually rent the room 450-500 depending on size. I am wanting to make this a business by purchasing at least one home yearly. I plan to get 5-10 rooms and more with only home going for 150k and under. My question is I purchase my home last year Oct of 2016 and was wondering if I can get another loan while still paying my mortgage? If so, how soon? Has anyone done this before and was successful? How much % down do I have to get? Is there 5 to 10% down possible? Do you think is a good idea for a particular house hacking? Thanks all the help will be great?