His adult kids helped take up the slack, but it wore on them as well. 

Here's mine as an example:Applicant Screening Criteria(June 2023).Please review the following criteria before applying.3 to 1 combined gross income to rent ratio: $5550 to $1850.No Evictions (5 years).No Bankruptcies (5 years).Credit score of 650+.Income verification required.Existing landlord debt disqualifies application.All adults over the age of 18 must submit a rental application, meet the application criteria, and sign the lease agreement.Identity documents must match applicant(s) information as stated on the rental application(s).No incomplete applications.No more than two tenants/occupants per unit.

I've lived with them my entire adult life, spent a lot of time traveling and staying in hostels and all that.

Maybe you get some female property managers who have had kids and don't want a full-time position, but it's much harder with maintenance, because high-quality maintenance staff are always in high demand and hardly ever want part-time work.  

Goals for our family business is to get out of the rat race and sip adult beverages on a beach somewhere. 

I'm recently divorced with a couple, almost adult, children. 

We let them know our general requirements (application for every adult and $20 application fee, income must be 3x the rent, Landlord reference, etc.) and that's enough to scare off about half the applicants.

I have my personal homes and an adult disabled daughter's home in a Trust now. 

We purchase in bulk and only add one female and one male razor. at $0.50/razor it only adds $1 per reservation in costs. 

Eventually, I’d like to use the money I make from wholesaling to get into some BRRRR deals, and multi-family properties, and then maybe for nostalgia ill try my hand at straight flipping as an adult.