My wife not comfortable putting our house as equity, therefore we are utilizing other options to fund investment properties. 

Recently closed a deal with a client that was a 3/1 single family house for $120k and they're renting it out to section 8 for $1550/mo!

It’s impressive how you took this single-family fix-and-flip from start to finish, self-financing and managing the project as the GC.

Again, this is just an example.I probably would not recommend you buy single family homes if you want to replace your income.

I wanted to see if anyone is familiar with or can recommend paid mentorship programs or coaches for small multifamily unit investing (2-4 units).In my research, I’ve found that most mentorship programs or resources I come across are geared toward large syndication apartment building purchases or other types of investments, such as short-term rentals, medium-term rentals, single-family homes, Section 8, or fix-and-flip projects.

When a lease ends they’ll suggest new rents and if the tenant hold be offered a renewal. some will offer to transfer utilities for you when it goes vacant, all should handle the transfer when a tenant moves in  With 10 properties I don’t “talk” to my PM more than 2-3 times a year.

In depth knowledge of a city's economy is not necessary if you are buying a single SFR.

Quote from @Raghavendra Jakkani: I have a single family house available for rent.

I'm happy to share some tips about purchasing an STR in a different state.I joined Stayly Academy, which helped me secure a lease property under my business name and utilize it for short-term rentals.

My partner and I keep an excel spreadsheet of rent, our purchases, utilities, taxes, insurance, and money spent on contractors.