.)- Do you have healthy working relationships with contractors/vendors?

Real estate investing can be time consuming and hard work especially in the beginning but once you do a few deals it will get easier and you will learn ways to make your real estate investing much easier.

A healthy percentage of higher density multi family properties are open to seller carry or owner financing.

While this plays a role it really dried up at the consumer level about 1.5 yrs ago so this is a less of a factor for 2024.

Depending upon that, and your financial health I would just recommend hanging tight and adding another avenue of future income.

It will just be more time consuming and error prone. 

This is dependent if I chose to cover the A/C unit in my Home Warranty package.If I had a fire in my home in which a room burned down and my personal property such as TV's, furniture, etc was consumed in the fire, then I would call the Home Insurance company to fix/repair the burned-down room and also to replace my TV and furniture.

These are the sellers OFF market that may accept a healthy discount, but these houses come with issues that may be cheap to fix or may be very expensive to fix.

I assume operating a MTR is more time/effort consuming than running a LTR, but I'm wondering whether it's a just little more time/effort, or a LOT more time/effort?

You can use the USPS and their Every Door Campaign to touch all doors in a route for about 16 cents, then add the postcard 6 x 9 created at a local printer, mine run me about 14 cents each, and you have a full 4 color 2 sided piece in the hands of the consumer in your target area for about 30 cents each.If you need a list, try a list broker, start small and see how good the list is.