For example, we've recently taken over marketing internally because the property management company was not experienced enough in using the newer advertising methods we need to pursue.

@Tammy Elias The lease is tied to the property, not the management company.

There's usually a good reason why a company is cheaper or more expensive.

. - Most Fortune 5000 (and others) companies do this.

Could you recommend a trustworthy and cost-effective company for this? 

I started my career with the renovations team renovating the houses we buy, and with the property management company working with our residents and our maintenance teams.

We are looking to connect with others to build a solid foundation to our newly started company. 

In order to have checkbook control, the IRA account will need to be at a trust company that will allow the IRA to invest in an LLC (where you will be the manager and your IRA will be member - an as manager you will have checkbook access to the LLC bank account).

Have you considered using a property management company?

.: Quote from @Audrey Sommer: A couple weeks ago, I was talking to a texan resident that came up to Washington State to help the company I work at, train our team for a new product launch.