Hello Mamadou,I want to start by saying that you are making a great choice in considering house hacking with a multifamily property, and you have made a wise choice by reaching out to the BiggerPockets community for some guidance.

There are multiple choices .

I rent to about 130-140 students and I've found it pretty hard to figure out what college kids care about other than:1) Location to something fun (bars or football stadiums)2) Huge bedrooms and/or living room3) A combination of the first twoIt's my experience that their housing choice is almost always an emotional decision (i.e. they can picture themselves having a lot of fun at the place they're going to live).

I started giving preferred returns then moved to selling them as partials.In regards to principal and interest - this is a personal choice of returning only interest and using principal to cover any unexpected costs or returning it if you collect an upfront holding cost.

Some of the bigger brand name outfits probably aren't the best choice. 

Ty if you're willing to work with someone virtually there are some great choices here on BP. 

I'm In the process of upgrading  a small 3 -2 rental and I'm at the point now where i need to choice some new kitchen cabinets and the bathroom vanities looking for some advice on which to choice whats the most popular with more experienced landlord investors who have been through these upgrades before ?

So if the choice was, sell an investment to provide a safer environment for my kids or keep the investment and sacrifice my children's safety even a little bit, if I have the financial means, then I feel morally obligated to sell.

In this case, do I the buyer have a choice of not using his service?

I don't think that was a smart choice.