Either be active in management or hire a reputable PM who can satisfy this role.

It gives the profession a bad reputation.

Taking advice from someone with a financial BIAS is dangerous to your financial health, unless you know that individual to be “above” short term personal gain and strictly in for long term relationships and reputation.  

This way, you’re not at risk of losing all your hard-earned feedback and visibility, which could set you back in the competitive short-term rental market.It's essential to find a PM who can work with you in this setup, as it's a balance between functionality and maintaining your property’s reputation online.

Any recommendations on a reputable company to do the testing?

So far I have seen 2-2.5% the only 0% was from a small local commercial brokerage who always had a reputation to lowball buyers agents so most agents just never send out their deals. 

looks like a reputable company to me.. website tics my box'xIE identify ownersidentify properties.mission statement.SF based.

Managing everything solo can be quite time-consuming, so collaborating with a reputable team is beneficial.

Talking with a reputable lender will help you answer both of these questions, although the first is much more up to you and your comfortability. 

Network with commercial brokers and ask them for referrals to reputable investors.