@Hamidou Keita I would recommend if duplexes are limited if you can get a 4-5 bedroom house and either rent by room for house hack or splitting a big house into 2 and adding a kitchenette and separate entrance as a more cost effective ROI option 

Framing your position as fair such as explaining the difficulty of finding renters during off-peak months - might help maintain a positive relationship and reduce risks of property damage.Prepare for What’s NextEven if the tenant moves out early, ensure you’re protected.

Trust and referrals are the lifeblood of building relationships in the real estate investment world.

Banks, particularly smaller banks who provide real estate loans are increasingly focused on their borrowers maintaining depository relationships.

Deductions like mortgage interest, property taxes, insurance, repairs, and depreciation will help offset taxable rental income.This post does not create a CPA-Client relationship.

I use all of them:-Brokers-Platforms like LoopNet, Crexi (my favorite), and BiggerPockets Deal Finder-additionally, brokers often have access to off-market opportunitiesWhen dealing with brokers, I've found that you have to build a relationship in order to get a good deal flow.

Build relationships and you'll find offering services well come. 

Explore multifamily or out-of-state investments for higher yields.Setting up an LLC provides liability protection but has no tax benefit for you now.This post does not create a CPA-Client relationship.

It's a domino effect.   

In Portland for example we are not allowed to increase rent more than once in 12 months, and it must be less than 10% increase in "effective rent".