Concerns: I did not personally vet the current tenants and I worry the dog and smoking might damage the units (so far, the units look fine on the inside).

Yes, you can sue for specific performance or for damages if your sales price ends up lower than the current contract price. 

.- Put a new lease agreement with new damage deposit, new rate plus utilities, and conditions or- Evict  for full building Reno. 

My criterias are the following:*A home that I can get for 20 to 30% under market value that may have cosmetic damage and slight repairs that a one-man contractor can take care of within a month, *neighborhood C+ or B-* last price range of 100000 to 250,000 -THANKS IN ADVANCE

********************************************************Update after work start: (ADDITIONAL ISSUES from PM)Vendor was out yesterday and today, and they started to dig and clear out and found there is more damage in the line then they had previously found.

A lot of properties (especially condos and in the price range I was looking at) had at least some "wood eating insects" damage.

Perhaps I need to map out where duct work would go and see how much additional damage it would cause. 

  - Funding would be for 3 months to 6 months, with possible extensions TBD and evidence of ongoing effectOWNERS: - documentation = rent rolls and evidence of people who need to leave due to C19 issues- effect on ability to pay mortgage, other expenses or essential income- possibly a credit line to fund rent deferrals: this could be offered to current tenants or possibly to prospective tenants who are otherwise good credit risks. - perhaps owner would assume 5 to 10% of the risk which is better than the cost of having empty unit and also helps out the tenants. 

Telephone prospecting has been the life blood of my business and I am considering adding vacant lots and raw land lists to the database. 

@Travis LawrenceIf a tenant is dying to get into a property, they could volunteer more deposit money akin to putting down a higher EMD for purchasing a home to show the seller that they are serious.I'd avoid making a suggestion about a prospective tenant "needing" to pay a certain amount over legal requirements.