What is the interest rate of the loan you have?

@Karolina PowellI second @Charles Seaman comments.I would add since you own other rental property in the area, you probably have a good grasp of rental rates as well as expenses in the area.

I'm working with the City of Kansas City on determining the highest and best use, which will hopefully lead to building 1-3 new multi-family structures (ideally duplex, triplex, or quadplex).

This means saving $2,000-$3,000 per month and living off of $3,000-$2,000.If you can maintain that savings rate and keep your cost of living low, you'll be in a great position to jump-start your investment growth much sooner.

Considering a PM company's main objective should be to represent the landlord's best interests, some expenditures might seem questionable and could have been avoided.- It seems that their prices are substantially higher than what would normally be charged for the same services.

I can afford a 700K home with 25% down on a 6.5% interest rate.

Best of luck getting this sorted out friend! 

It would be helpful to see the rates on both the purchase and the HELOC. 

I’m eager to learn the best strategies for funding my first investment property, focusing on single-family and multi-family homes.

Most of the people from Airbnb actually stay a few months at a time, I have monthly rates to encourage people stay for a month.