PA doesn't even limit late fees by statue, but I suspect there are court cases on excessive fees that have set a precedent.

Because you will be sitting there in court thinking you are all set and get "Your honor pursuant to article 7 of statue 73B my client is entitled to (Blah Blah) and the judge will sigh and ask for a response.

She lost her marbles threatening to not fix another thing in my unit after these repairs.Just recently, she placed a 3 day quit notice on my door.

You just have no idea the bad taste or different taste than yours that some people have.When I bought my personal home, the master bedroom had a linoleum floor that looked like "green marble". 

No fussy features like marble countertops that stain easily or other house systems that require upkeep like water softener systems and similar. 

The compensation is required by MN statue 504B. 

I show up at 6 am/pm and every person going through the gate has to pick a marble out of a covered box. 

It comes in the highest durability rating (there is scientific lab test numbers rating different tiles including the ones you guys are talking about)  The only problem for me with it was the crappy labor I had to choose from the job being near Houston right after Harvey .. that kind of hard tough tile is sharp cornered like marble so you got to get a better tile setter that will butter the tile and floor, and also float it with level or the tile will be uneven slightly enough to give sharp edges snagging peoples socks.I am now building 14 more apartments and I got to decide on floors real soon, I want to know more about that PVC, that sounds real interesting. lot easier than tile I a talking about That kind of hard tough porcelain tile cost about $1.10 to $1.30 a foot when buying bulk and the labor need to be over $2 a foot, Plus floating the floor when needed.

I could theoretically go a bit bigger probably,  but I'm being conservative since I suspect we will get statewide rent control in WA similar to oregon's statue next year,  so I don't want to overleverage myself.From the talking with a couple commercial lenders I gather the main differences from1-4 unit financing are:1)  variable APR,  usually with a lifetime maximum cap. 2)  15 or 30 year amortization rate (or some other options) but with a balloon payment after a much shorter term, like 5 or 7 years, meaning you MUST refinance or payoff at that time.   

Examples of these are tile and LVT flooring, granite and marble countertops, and a good paint that has a tinge of color to it so it doesn't show every little mark and will be easy to touchup between tenants.