Main thing is establishing who is responsible for the maintenance and repair which I would suggest is you as well as making sure that your insurance policy is accurately covered for a tenant with a pool 

Established relationships help in cutting down the time spent in searching for desired product or service. 

Johnny,Transcity Property Management is a well established and successful Property Management group in Mesa they've been in business for 35 years and are very reasonably priced.

We do not take on any clients that are not committed to building a portfolio of investments or have an established portfolio. 

Lawfully, taking over a vacant, apparently abandoned property that you have no claim of title to, requires taking all steps you can think of to establish that the legal owner has "implicitly abandoned" the property. 

One company owns everything and does nothing (this is your SLLC a/k/a “asset holding company”) and a completely separate company handles all of your operations (this is a traditional LLC a/k/a “operating company”) For the operating company which serves as your face to the world and through which you do all your business, you establish a Traditional LLC to carry out the operations of your investments.

You can establish your LLC while you're in escrow.

Instead, run your business in a professional manner, be polite-firm-fair, abide by the law, mitigate your risk, maintain proper insurance coverage, establish a sound rental agreement, enforce the terms of the rental agreement, courteously attend to tenant requests as they arise, understand the difference between tenant needs/wants and landlord needs/wants, set boundaries, maintain the property, and attend to issues in a timely manner.

It sounds like a ton of work but the majority of them hustled really hard for 2-3 years and are now well established.

If you are trying to establish a long term partnership, then you can form a holding company that will then own the individual entities for each property.