To not know or to disregard it is either going to be detrimental to your investments or is purely greedy selfishness.

People are entitled and selfish in general, so make sure your last cleaning is as meticulous as the first cleaning when you still cared a lot.

Some relatives can be difficult and selfish. 

It selfishly  it turns out to be a better investment environment.

My brother thinks we have to help and when I explained him this, that I “didnt“ want to help at least right now he told me how cam you be so selfish you can do whathever you want but if you dont help you are dead to me.I just dont understand how they dont see that the best option is to buy a house in order to rent some space!

It can be a great option, or it could be a terrible option - running your numbers as Michele mentions above will help you choose the right path.Many of us have worked with HML's, and as selfish as it is - I don't give out my best guys because they are relatively small and they might not have enough in their coffers for my next deal if they get too busy with other investors.Also many lenders work only with specific types of deals in specific geographic regions. 

Selfishly, the PM wants the interest generated from the security deposit.

This would be an improvement on my personal life (selfish approach) but wouldn't necessarily improve my goal of building out my RE Investment portfolio.So, those are my two options.

@Tony MarcelleThe best advice I can offer is to stay calm and resist the urge to smack anyone, however incompetent, annoying, selfish, and obviously stupid they are.

I don’t want to come off as selfish and ungrateful, I would love to assist anyone out there in any way.