Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

A good real estate accountant can save you thousands of dollars by leveraging entity selection and formation, tax deductions, cost segregations, bonus depreciation and tax planning.I recommend finding an accountant who specializes in real estate taxation, business taxation, financial planning and tax planning.You may want to consider working with your accountant remotely to expand your options.I would also recommend looking for a accountant willing to work with you throughout the year.

Risks: rates go down and you have to pay a prepay of 2 or 3 %; you have to sell and pay the prepay; rents decline & you can't make the payment like any other type of loan; cost upfront a little more than conventional; need to find experienced broker licensed in the state where subject property sits; servicers are bulldogs. 

Not going to give here a lecture on S-corps, but take my word: no benefits, only extra hassle and extra cost, such as preparing another tax return.

Been thinking about investing in one of these sites, but want to hear which other wholesalers have had more success with and which offers the most benefits versus the cost.

@Tom OchiengI would reach out to a real estate attorney for specific advice on this situation since you already have one tenant who is being difficult.On a side note, when I have inherited tenants, I have been most successful when I have provided longer non-renewal notices, like 60-90 days, and offered to assist with moving costs.

I have a large lump sum saved in an investment account for down-payment and any additional costs.

For a conventional loan, you can borrow UP to what you paid for the property plus closing costs OR 75% of the appraised value which ever is less.  

2 or 3 bedroom properties would be more profitable considering their cost?

I can lend up to 100% of the purchase price and 100% of the rehab costs for experienced investors on 1-4 unit properties.