This seemed to be the most reliable way to find someone that I feel confident is good and knows real estate. 

This allows you to access funds while keeping your existing mortgages intact.Second Mortgage: Explore lenders who offer second-position loans on investment properties, though rates will be higher.Cash-Out HELOC : While traditional banks often restrict HELOCs on non-owner-occupied properties, some portfolio or private lenders may offer HELOCs for investors.With $15-20K in liquid funds, look for deals where you can negotiate terms:Seller Financing: Negotiate lower down payments or interest-only periods.Subject-To Financing: Assume the seller’s existing mortgage while covering the down payment.Lease-to-Own: Lock in the purchase price while using rental income to build equity.

You cannot be locked in 100% all the time. 

Those types of properties can bring in good returns, but the management can be intensive, and finding reliable tenants for both residential and commercial spaces might take some work.

Have you considered a cash-out refi instead of a HELOC to lock in a fixed rate and avoid variable rate risks?

Are you locked in on the contracts with the current set of tenants?

The most reliable method to locate liens and their positions is to conduct a title search through a title company.

Then they lock them in to a SLIGHTLY lower initial cost per kWh.

It's a 3 bedroom house and we plan to use technology such as a smart lock, WIFI exterior cameras, and a smart thermostat.

Additionally, seek out testimonials or referrals from other real estate clients to gauge the CPA's expertise and reliability.