I put three prong outlets in and tested them but the failed.

Off the cuff, FHA can be difficult with appraisals, sellers willingness, self-sufficiency test, life time PMI, & FHA premium.

I feel like I usually know the answer but need a sounding board like BiggerPockets to test my thoughts out!

Based on only the facts and circumstances listed above and if it meets the 2 out of 5 year test, it will be considered under the $250,000 income threshold and non-taxable.

You should have done a sensitivity test on all of the points above.  

I am currently considering a deal on a very small park as a way to test if MHP's are going to be for me or not.

It is testing my patience and persistence.

I just wanted to get some insight on how common it is to request mold tests prior to purchasing a property and testing for mold with long term buy and holds in this climate.Thank you in advance! 

Plumbers , electricians , HVAC , need time in the field under a master before they can be a journeyman and more years before they can sit for the test for their masters license .  

You'll learn a lot in those meetings and meet others you can talk with to expand your sphere of influence.Tenants will test you in the early months of new ownership.