Here's some input to help guide the decision between selling or renting the property, considering the specifics of the property and the potential additions like the ADU (Accessory Dwelling Unit):1.

As a licensed real estate agent and contractor, I speak the language and can guide you through the process to ensure everything runs smoothly.

In addition, some states have different regulations tooI'm sure that someone that specializes in Insurance can give more insight into what is and isnt necessary or best for our properties.

When evaluating a property management company, it's important to look beyond just the management fee and consider the full scope of services and costs involved.For example, at our company, we charge a 10% monthly management fee, a $250 lease renewal fee (unless it’s a takeover tenant, which requires additional effort to establish a strong relationship - because usually people are changing pm companies for a reason), and the first month’s rent as a leasing fee.

Additionally, it's easy for a house on one lease to get absolutely trashed by the renter.

Since you mentioned REI Hub, I worked with REI Hub in the past and they had the same connection issues but their CEO is usually good about making quick updates to create a better user experience.That being said, there is no perfect solution out there regarding bank feed connections so I'd go with one you know and ensure the accounts are linked on a weekly basis to be confident every transaction is flowing through without interruptions.

Most of the time, an ADU will cost 100k just for that part and then you have to actually build the cosmetic part for an additional 40-50k. 

The best thing you can do is familiarize yourself with Housing Quality Standards (HQS) and ensure your property meets them before your initial inspection.

My goal is to grow this business by expanding my investor network and seeking properties that will allow for additional scalability.

You pay your agent at closing (think of it as an additional closing cost) Depending of the situation and of these options can be used by you and your agent to negotiate with the seller.