Water damage can cause a very serious damage to structures.Sorry I was not able to give you any specific numbers to help you but good luck, sometimes keeping it simple might be good to get started with.

I do not have a sheet but I typically budget $150 for lawn, $150 for pool if applicable, $100 for cable, $100 for water, $300 a month for electric (depending on property size and your local utility costs), $50 for pest control, and another $200 per month in misc. 

I am debating whether i should just fix the shower pan. or, rebuild shower as well just in case water leak is coming from shower walls. what do you think? 

My wife and I are looking at buying a property that we can live in and fix up (cosmetically) and then either rent it out as a standard SFH or as a short term rental. 

I am using OPM as meaning the use of funds other than my own to replace funds I would otherwise need to complete an acquisition using standard financing.  

I do the standard buy and hold but the property has to be bought at a discount - 85% of ARV is my maximum - including purchase price and rehab.

It is very strange for a PM company to hold rent for that long.The industry standard is for the PM company to pay you on the 10th after rents are received.I do see some PM companies paying on the 15th.Ideally, the PM company can pay by the 10th because most mortgage payments are due by the 15th of the month.You may want to consider giving another look for a PM Company.

Laws, contracts, best practices and standard protocols are always changing.

Some people like to live at a higher standard of living than others . 

About half of them because of heat, storms, fires and fresh water concerns.