@Daniel Sar house hacking is a little trick for the tax end of things.

Around what percent do you rent under market and what other tricks do you employ to keep your tenants easy to manage?

Second if you are not interested and have tips, tricks, are advise that you can give me about hiring the right people, the process,  people you know (i.e. builders, surveyors, architect for the plans, or engineers) are a system that you use to figure out the cost please share with me.

I closed on my 6th and 7th in April and know some tricks.

Buying occupied should generate you cashflow on day one, but you need to vet the tenant and lease that you would be inheriting and contractually have to respect.In any case, we have done both and I am happy to share all the tools tips tricks resources we have and used when getting started.

Any tips, tricks, recommendations for a newbie here would be greatly appreciated.

Helping sellers that don't have much equityI'm a big fan of " not being a one trick pony", and I like pretty houses with not a lot equity. 

The trick is you have to occupy the home for a period of time before you can rent it out.

There are some tricks I have learned to get good information, even out of bad references. 

A real local attorney, who might also handle evictions is probably a good one to help you write a lease as they will know all the tricks to include or avoid.