Sometimes 'give them an inch, they take a mile' is an appropriate frame of mind.You have responsibilities and time frames if for instance the water heater goes out, the tenant has responsibilities and paying on time, every time is job 1.

In this instance, they are not really loaning you the money.

I know BiggerPockets has a pretty extensive list of online rent payment tools here:https://www.biggerpockets.com/rei/pay-rent-online-...Good luck with your first building.

For instance let's say you deny someone because you believe them to be a messy person or because they smoke pot.  

(@Pat L. mentioned them "water units")This-Old-House has 2 shows mentioning type of sump pumps....Chicago experienced some flooded basement/houses either because primary sump pump give the ghost, battery backup drained because of extensive periods of power outs, local sewer system....One brand is called BASEPUMP.

I offered a rent discount for this month in exchange for them signing a 6 month lease extension to get me through the winter and into spring.

Indoor pics show the need for extensive updating.  

I don't have an immediate or extensive list of subs in my area whom I know and trust.  

If you can cite any instance where I have spoken or posted untruths, I'd very much like the opportunity to set the record straight.

I had a previous SFR with extensive cat urine and we had to remove carpet and some flooring...if the subfloor is affected, replace it.