Most serious and qualified tenants are searching on the major 3rd party platforms you mentioned + realtor.com, redfin, and a few others.Apartments.com & homes.com are owned by the same company and may offer some additional marketing options.Another strategy to consider here is social media - video marketing.

I wonder how involved would I still have to be if I hired representation?

Risk Management: Be aware of the risks involved, such as unexpected renovation costs, property management challenges, or changes in the housing market.

.- OP has not indicated they will involve HOA even though multiple replies suggest doing so.OP asks for advice, but seems to ignore it.  

A few questions:Have any of you been in a similar situation where multiple partners were involved?

Most syndicators use quickbooks and run a portal through juniper square or appfolio or another 3rd party software companyOnce you outline your pain point happy to provide recommendations

Please do your research before getting involved with this "Guru"Many members of bigger pockets can attest to this.Regards,

This part, I don't know so much about.if you need more info, feel free to reach out.

This assumes there are no third parties who took an interest between the original deed and the new deed (think mortgage lender). 

However, there are some drawbacks to putting a rental property in a trust - first setting up a trust can be expensive and involve a lot of paperwork, the rental property may be subject to rent control and liability insurance may be more expensive for a trust.