There are many ways to go about this, but one of the cheapest is to look on Google maps for buildings that look like 4-plexes.

If so they may have a real estate license or they may work with an agent that relies on repeat business rather than a one-off purchase. 

They all say they will be on the lookout for me, and they are experienced realtors.I did however get one from here, bigger pockets, and this realtor hasn't worked with investors before, butis asking me to sign a contract so I am working with them exclusively.The reason I am asking what to do, is because this realtor with the contract is very new, but I heard that most realtors will ask you to sign one if theyre serious.

If his landlord reference for the past five years is good, that would weigh much heavier than his eviction.Based on what you've shared, I think this is a low-risk situation, and I would probably accept them with a deposit equal to one month of rent.

One of the best things you can do right now is educate yourself.

The number one mistake that I saw buyers making was jumping right into negotiating (and not very good negotiating at that) without first spending the time to build rapport.

This may not seem like a big issue, but if you're paying for premium data, like I am, it can drive up your cost per deal drastically.I switched to REI Reply last year and can send off over 2000 texts in one drop.

No one wants to put in the effort, work, time and money, into a healthy habit or - for real estate - into a solid asset.

But even if one ended up with 500k in cash .. thats a nice nest egg to start over with and realize that there is a ton more to RE investing than collecting doors and debt. 

The key is to buy a distressed multi-unit or single-family home with space to rent out, rehab it to increase value, refinance to pull out equity, and then continue living in one unit while renting out the others.