The best thing you can do to protect yourself is to follow the law and treat people honestly and fairly. 

These will certainly specify the jurisdiction and venue for any disputes, as well as the governing law.

I also hope to build my network of lenders, contractors, etc.My highest priority currently is learning and practicing to identify and analyze properties.

@Elliot B.I doubt a energy meter based on airflow, heat - etc - of any variety - would hold up if challenged in a court of law - 

The laws are clear in every state, you don't pay rent, get out.

Quote from @Alex Zweydoff: For those interested, i recently updated the blog on our website with new relevant information regarding the law.

.✅ An agreement must be in place between the buyer and buyer’s agent before any properties can be toured.It should be noted these rules are in line with the NAR settlement and is an MLS participation requirement, not state law

My real estate agent doesn’t seem familiar with that and didn’t tell me about the 3 people outside of family circle max requirement in single family zoning.I also need advice for renting finished basement legally and make more bedrooms, experiences and tips are more than welcome as he didn’t seem knowledgeable.Shall I change of real estate agent and find someone more used to this type of practice ?

To make a long story short, i am told there are quite a few complexities and fees that make it only practical at scale.

I just got quoted $160000 for a four unit plus in law in Brookfield including permit and all related fees. for an extra $3500 I can add two EV chargers, but will receive a $16,000 credit from ComEd.