2) Screening applicants3) Executing a leaseAll complying with Fair Housing Act, federal, state and local laws?

I identified a lucrative opportunity to lease a property to law enforcement but have no idea on what legal clauses others in the past have included in their agreements.

Tenant laws making it much more complicated to be a property owner in Multnomah county. 

Look at the Florida condo market to learn how the market can be affected by special assessments, weather-related disasters, insurance availability, as well as newly promulgated laws/regulations.

The investors who learn a single strategy or tactic, usually from a “mentor” and do not bother to learn real estate fundamental, real estate finance and real estate law miss out on “creative” opportunities to significantly enhance their ROI or significantly decrease their risk.  

Are you referring to the crazy law where if you buy a property from a deceased person (we have had this happen via foreclosure) that you (even if you were the lender) are responsible for inheritence tax. 

what it sounds like you are asking is illegal in many ways, section 8 laws, local laws, duel contract laws that conflict, there always has been also those out there looking to catch you breaking them,  avoid it, dont offer it, dont entertain it, there is leeway up if the tenant meets certain conditions, say need 1 floor rental, if not rent may be inflated over realistic market, which is what rented at not listed at, keeping in mind sec 8 market rents also include utilities paid, you can usually reach by email fastest, they have set chart, heat type, neighborhood etc, more than listings found online

From personal experience the national courses would always state throughout their training "check with your state and local municipality laws for applicability."

I am hearing a lot about tenant issues, washington state laws favoring tenants etc. 

The tax law changes every year, can you really keep up with it?