Buying Rental Property Without Owning Primary Residence

[Andrew Holloway]

Hello all.  I am new to the forums but have listened to plenty of podcasts and read hundreds of other peoples posts over the past few months.  Thanks to all for the advice.

I am a former homeowner who sold my primary residence and went back to being a renter at the end of last year.  I needed/wanted to move without the longer term commitment of owning another home so renting was right for me at the time.  Obviously I am on here to build a better financial future for myself and paying some one else rent is not a long term goal.  I have money to put down on another home but plan on moving in with a serious girlfriend at the end of the year when the lease is up.  She owns a nice single family home that I can live in at minimal expense.  Instead of using my money to buy another home I thought about putting it in to an investment instead.  

Does anyone have experience buying a rental property without owning a primary home?  Curious to hear your stories.  It seems like a logical move to me but wanted your advice first.