Two properities with mortgages...what should my next move be?

[Lindsay Rudolph]

I have two multifamily properties in Cincinnati OH. Fully rented. Both have mortgages. I just started traveling with my job, but would like to continue to invest in properties. I have a management company managing my two current properties. Should I save up to buy my next property with cash? Should I pay off one mortgage before I invest in another property? I would love some feedback on what my next move should be! Also, pro/cons for single family houses vs multifamily houses in Cincinnati Oh? Thank you!!