Many PMC's don't take the time to track mainteannce history to see if issues are repeated or otherwise have a pattern - even if that pattern is just a bad tenant.So, have a 30 minute chat with your current PMC and ask them to put together a maintenance history for you to review with them.

New tile in bathrooms, new toilets, new tubs, new cabinets, countertops, kitchen flooring.

Go online and key in something like 'acoustic floor tiles' and there are lots of recommendations to help you out.

Tile can be a good option too, especially the newer woodgrain looking finishes, but only if it's installed perfectly. 

Check a tile guy vs your handy man tile job the handy man tile prices are same as pro no brainer go with the pro.Fill in the blank with others jobs that need to be done.

Rotted floor from leaky toilet rotting walls due o leaking shower valve, and previous owner just ignored. so her floor was taken off, sub floor replaced, new flooring put in, new toilet and vanity and sink, now working on new shower valve and tiles.

In being familiar with what's basically the carpenter side of things as you've described, while that will save you personally in overhead on this kind of rehab, you're still (I'm assuming) going to be factoring in hiring for things that are not in your current wheelhouse maybe plumbing, electrical, laying tile, roofing  etc. - so maybe the idea of being the solo contractor on this isn't as realistic? 

Reglaze the tile in the bathroom and shower, new vanity, new toilet and new LVP flooring throughout the unit.

I also have a background in data science, so I've been pulling together a data set with all sorts of data about population growth, migration patterns, income growth, job growth, number of building permits, local GDP growth, educational attainment trends, home price growth, and rental price growth.

Other options are glass block and tile around the window.