I've never had more than 1 at a time but haven't really leaned in to make it a primary business for a way to eventually replace my current career field.

$2.50-3/sqft, lasts a long time, and is easy to replace

I replaced all flooring, scraped the popcorn ceilings, new kitchen appliances, new paint and new furnishings except the mattresses.

This eliminates the "subjective" component that gets so many investors into hot water.  

Should I replace it all of just replace everything other than the ceiling lights wiring?

From experience, you will need to replace items (some  costly), do repairs, and cover insurance and taxes (even if you include them in you payments). 

The 3/2 is very similar, just has carpet throughout (has a long term tenant in place, but I will replace carpet with LVP when tenant moves out. 

And if the timing works out right for you it will be just after the next crash and crater in regular real estate.BTW - Even if you end up focused on MF, a good DST can be a great back up option to save the 1031 if you can't find the right replacement.

And when the response was for a full replacement, they should have sought a second or third estimate.Here's the bottom line.

Just replace them.