@Brittney Yang first red flag is it doesn’t sound like he’s that interested in long term holds but the primary reason for partnership is expertise in renovation and secondary reason is balance sheet and income to help get financing.Regarding reason one, I would offer to compensate him for his time in assisting you and have a very clear scope of what that responsibility is.  

Your ability to qualify depends on income, credit, and lender requirements, but leveraging your equity makes your request more feasible.

If you’re holding onto tasks that someone else could do better, faster, and cheaper, you’re limiting your income potential.Discussion: What’s One Area of Your Real Estate Business You Need to Let Go of?

That should cover 2 rental income periods, returning $660 to your pocket.

Throughout the year I come across situations where people need to sell there home due to a variety or reasons, job loss, income loss, health, divorce, etc.

Both higher income yields and appreciation in value. 

Financial freedom isn't simply about replacing your current income, because inflation continuously drives up prices, making a fixed income insufficient to maintain your standard of living.

My plan is to funnel the rental incomes from all three properties, along with my W2 income, back into the HELOC while covering all expenses from it as well.

I am seeking recommendations on how to network with investors and find those who may be interested in coming on as a joint venture/partner.

I think the OP is talking about property tax not income tax ??