@Aaron Raffaelli, I’m sorry to hear that you are having issues qualifying.

The other non-math issues I'm good handling myself. 

Find the REIA group for your areaAs Henry noted, post something specific for your area and tag your market.Get on Loopnet for your area and property type, reach out to the brokers that are listing deals and offer to take to coffee (they are often invested in deals too but you could ask for connections to other operators that might be getting started).And, again as Henry noted, each person you meet, ask them what other networking events they have attended that you can put on your list.

Where another issue arrises is I recently quit my job after becoming pregnant as they would not cover my maternity while overseas, my husband is employed however he works for a UK company and is British so would be unlikely to help us with the situation in the US.

Most STR markets have seasonality, and there are untold issues in the future that will effect cashflow. 

Is it a common issue for beginners to get a PM on board with only 1 property to manage to start?

No DTI issues.

It is what is left after snow removal, cutting the grass, utilities, tenant issues, parking lot issues, property taxes, mortgage payment, etc. that make a difference.

Otherwise you will quickly run into scaling issues.  

How can I correct cashflow issues if I have 3 properties?