Have you noticed a large build-up of inventory in AZ?  

If you buy in desirable, growing areas, you will build up cash flow over time AND have equity growth.

None of the volunteers here can create a wholesaling business for you, you're going to have to take the initiative to build up a lot of knowledge on your own and then ask specific questions when you run into challenges. 

I would recommend trying to build up your existing network - maybe start a local newsletter and share it (I use mailchimp.com for that).

Welcome to the community @Roberto Pellecchia You can network here to build up your team in investing https://www.biggerpockets.com/meetYou can also in this local forum for  recommendations https://www.biggerpockets.com/forums/742-philadelphia-real-estate-forum

If you think you'll sell your current properties in a few years, build up the equity and pay them down now so you can be in a better position to roll the money from those sales into other properties.

Unless you can survive such an event, it is probably best to wait a bit and build up some more capital and consider taking a plunge when you get closer to $50k or more.  

Looking at multi-family in King Cty is difficult and financing will effect your ROI.  

The red ink stands out very well on the yellow paper.

You build up a network to locate off market properties.