I could be a senior engineer working for someone else making a bunch of money and not have to go all over the place pandering for business, collecting on invoices, fretting about insurance and payroll....Seriously, if you are self employed, you are more constrained in so many ways than if you have a well defined responsibilty working for someone else.

Some professors are good at doing data analysis (demographics matter to RE).

They never reported a problem with the drain, and now you have a sink base cabinet delaminating, mold, and more repair bills.Yes, some of this you can bill the tenant for, and maybe even collect it, eventually.

How much do you need to collect to make it a good deal for all?

John,Yes, many of the large landlord associations publish this data.

All of the real estate data points to a significant downturn in real estate in the United States.

Are you simply looking for data points?

If so, then you can certainly sue him for the remainder as well as the appliances.Now, in many locations you cannot collect double rent.

BP collectively could be that mentor.John Corey

Typically what you see is:5-10% of gross rents collected (some set minimums in addition)50-100% of 1st month's rent for getting a vacant unit rented plus advertising (high in my book)50% of 1 months rent for lease renewal (complete rip off)Some will take a portion of late fees (bad)Many will charge you hundreds of dollars to handle evictions (even though they do nothing but call the lawyer who handles it all)Typically, they also charge $25+ per hour for handyman (who they likely pay WAY LESS)The fees are never-ending.