there are a number of factors as you previously mentioned. 

Also, a factor is that to self manage (with help) is no small task.

If there are other factors I need to consider, please share those also.

Other factors to consider are the cost to refinance, any interest rate changes, etc.

The amount of loans you have won't be a factor until you hit about 10 Fannie/Freddie loans.

I would only recommend in A/B class neighborhoods otherwise guests will be turned off and you'll have environmental factors that disrupts your operations.

They’re attitude is a MASSIVELY overlooked factor people I think miss on and come in to hard on their tenants and vice versa.

As mentioned above, surrounding myself with like minded people has been such a significant factor.

Payments that you make normally fall into one of 3 buckets100% of the payment can be factored in somewhere on the returnPartial payment can be factored somewhere on the return0% of the payment can be factored in somewhere on the returnHouse-hacking also has considerable tax implications in the event that you want to sell this property.You can potentially defer a portion or all of the gain on the investment property with 1031 exclusion.You can potentially exclude a portion or all of the gain on the personal residence with section 121 exclusion

I don't know if area is a factor, but I am in San Antonio, TX.