My plan is to buy about 1 mil of real estate by 30, then spend 30 to 35 paying off the mortgages from the cashflow that is generated off the rentals.Of course that's subject to change. 

Really class A/B/C/D are all very subjective. 

If debt-financed real estate is acquired via an IRA, any income attributable to such investment will generally be subject to unrelated debt finance income tax.5.

After digging further into the situation the tenant was just arrested in Dec and released for distributing over 5000 bags of fentanyl and released on bond.

If I understand your question correctly list the property 'subject to the existing tenants' should cover you. 

All this data can be found by a local realtor or by going to realtor.com > and searching on "recently sold" properties.Appraisals are very subjective depending on what other properties they use for comparison. 

“CHANGE OF TERMS: The terms and conditions of this agreement are subject to future change by Landlord with 60-day written notice setting forth such change and delivered to Tenant.

However you only having 35k is kind of a different subject.

Moving money out requires transaction costs/etc. (1031 intermediary, buying a new property and being subject to the 1031 is brutal, etc.).

You’ll get to pick your tenants and SFH are not subject to the City of LA RSO (google it).