This would be a good time to look into a 1031 exchange, where you sell one house and use an accomodator to assist in the transaction. 

This model was implemented more to accomodate a high rate of growth in AUM as the labor market for accountants has been very tight for the past few decades.

If they have been there less than a year, I would not be very accomodating. 

Make sure you have plenty of room available to accomodate what you are trying to do, as well as ventilation.

If its really slow, then, yes, you may want to try to show it ASAP and accomodate peoples desires for when to see it.

You do need to make "reasonable" upgrades to accomodate people with disabilities.

I have a plumbing issue that has made the washer connection and kitchen inoperable due to clogged line. It may take 7-10 days to fix depending on the problem (plus factoring in Christmas holiday). Tenant wants me to ...

I am looking for help from people that have experience renting in a college town/renovating single family houses to accomodate multiple students or instead sticking with a duplex or triplex.

But those accomodations are at your expense, not the landlords.That said, if you have documentation that these lights didn't work when you moved in and you're being charged, you may well have a case.

So if you have to adjust money elsewhere you can do so to accomodate any overage on the major repairs.