The only real difference is you will only weight the part of the monthly rent they have to come up with that is not covered by their voucher. 

We had gone in with a fully underwritten loan commitment, which added a lot more weight to our offer, and the fact that Ive closed plenty of deals with this lender and could attest to their ability actually landed us the property over another potential buyer who offered a higher price with a contingency to sell their previous property.  

(oh and his insurance deductible was $5K)I would leave the hook ups and not provide the washer/dryer because there is also added maintenance and up keep with washer and dryers along with that possibility of them breaking and needing a whole new unit.

In order to make this the best property possible, we built temporary walls to support the weight of the home, then removed, re-framed, re-sheathed, and re-sided all the exterior walls.

THis is the only time I'll say attorneys are worth their weight in gold, lol.  

You may also want to touch on the infrastructure upkeep and maintenance when it comes to managing and operating mobile home parks.

--don't give up. Keep

You could by all three in proportion and call it a day or weight the portfolio to what you feel has the best growth ie Lifestyle vs All ages and tenant owned vs rental. 

Engineering programs (at least the ones worth their weight) are accredited by a national organization     That have strict standards.  

That is not helping an investor, its placing a financial weight around their neck from the start.