As far as I know modulars have state level permit, I haven't heard any federal level, means that the mod co needs to get state approval for all states to do this.

I have had my tested as part of the building inspection and the levels are fine.I do understand I need to disclose those levels to prospective tenants; however, I also believe I have to register these results with the state. 

Today they let me know that their financing isn't going well and they need at least 7 more days and may be staying much longer if their financing for the new house falls apart.The problems with this is that this is a tenant I inherited and haven't raised the rent up to market levels (but I did raise it on them).  

Somehow you will want proof of that amount just in case the PA Dept of Revenue audits the transaction; going through a title company will help you to have proof, because the PA Dept of Revenue will use the tax assessed value multiplied by the leveling factor for that area to impute the property value amount upon which transfer taxes are expected.

You'll probably want to set it up as either a TIC, Condo, or Co-Op. TICs

There are multiple levels of certification depending on how much remediation you choose to do, each certification level comes with corresponding requirements for routine re-certifications.

I see that my greatest barrier to entry is the high prices in my immediate area and a lack of contacts to turn to for mentorship and deals.

But its true going higher than 43% increases the risk in the loan and affects your ability to sell the note should this be your interest.On the issue of selling the note,  you need to do a MUCH higher level of compliance to have your note marketable.  

I would require minimum liability levels of 1,000,000.

I've been working at this over the last 2+ years and looking forward to taking it to the next level....Rod