I am a newbie wholesaler in VA and was wondering if it is okay to send my contract to my title company to make sure it complies with my state laws and if they would check it for free?

I've served them with a 10 day notice to comply or vacate, and even that they are fighting. 

If current owner wasn't able to pull it off I'd find out where was the issue-is buy and hold not his niche (builders at times have this trouble running 2 businesses), Are the tenants not complying with the owner, Age of the property (older it is more maintenance to keep in reserve) etc. if you want the deal then as fellow investors mentioned is to have an inspector complete a thorough inspection & run your numbers accordingly-as long as the big ticket items are taken care off then it comes down to on going maintenance/repairs & property management.

Also, one of the requirements is that the JADU comply with JADU law (65852.22); JADU law states that the JADU must be within the single-family residence.

We complied (that's on us) and paid him $1,500 on Monday, October 26.

If Jon charges a move in fee at 45% and then a non-refundable move out fee of 20% would he be subject to the SD rules and need to comply?

Call the tenant on your observations, insist the lease violations be cured immediately, and then determine whether this is someone you can trust to  comply with your lease terms.Expect more of yourself - and EVEN MORE from your tenants.You got this...

If the landlord doesn't own the whole building, he/she might be required  to have that in the lease to comply with other rules.

And if your renters comply then they will be refunded fully.

You should have signed an agreement at closing saying if the proration was wrong you agree to work it out between you but I see no way of forcing the heirs to comply.