A house hack could definitely be a good first step, allowing you to build wealth while maintaining your lifestyle.

They won’tfinance you, since bankruptcy laws allow you to keep your Residence.H.

You would still save more money 9 out of 10 times living with your parents but being able to leverage a low down payment loan will allow you to get a very high ROI on relatively safe investment. 

Even cheap carpet will allow movement...could void the warranty as well.

The last time I represented a mobile home park purchaser, county health department allowed four MHs per septic tank. 

What documents do they require, what credit scores do they allow, how do they verify previous rental history, etc.?

Depending on your loan it might only work in the STR game.HOA’s normally do not allow in the Oceanside area but if you get on the beach then they do with restrictions.If you want a personal consult let me know.I have a team here in Oceanside, Carlsbad.

The IRS generally does not allow you to deduct expenses for a property that has not been placed into service, as deductions typically apply to operational properties actively being used to produce income.

I have talked to the park management, and they said current owners do allow renting out as a rental, but the tenants would need to be approved by them. 

With our unique model we allow those to scale quite quickly.