Hard to know exactly for you depends on a number of factors.

See the chart from Fair Isaac Company (FICO) below: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyAccording to this chart, investors should use corresponding vacancy+tenant-nonperformance factors of approximately 5% for Class A rentals, 10% for Class B and 20% for Class C.To address Class C payment challenges, many industry "experts" are now selling programs to newbie investors about how Section 8 tenants are the cure.

Here are 2 key factors to prepare yourself for your entrance into commercial realm:1.

Consider factors of what the property will need though if needs work (account for that, do an inspection, have contractors give you a bid on what all could or needs to be done).

Some factors affecting costs are: - how small the units are - a 1500 sq ft house will be much more per sq ft vs. a 2500 sq ft house, similar to (10) 1 bed units will be much more per sq ft than (10) 3 bed units because the more you stuff into a smaller box, the cost per foot goes up, and you still have the same costs of a kitchen, hvac, foundation, etc. but you're spreading those same costs across much less square footage.

What I also recommend is also factoring in soft expenses that you are budgeting for but have not yet spent.

This is also impacted by how old your home is, so that was likely a factor for me.From what I can gather, it's best to increase my personal liability for now and require the tenant to get renter's insurance to secure their own belongings. 

It sounds like you've already invested a lot in rentals, about $14,000 when you factor in your upcoming projects.

Most your leads are going to be investors who want a steep discount anyways and they may factor in the savings in commissions (meaning you technically aren't paying but it is still factored into the price). 

With rehabs you can get to significantly lower purchase prices and typically the lender will just be looking for  a100k+ ARV so that you can refinance out of the loan once rehab is completed (100k as-is value is pretty standard for DSCR loans).With rehabs experience is the biggest factor to LTV and rate so partnering up with someone for the first one or first 3 will get you significantly better terms (working in the same area can also provide benefits in terms of LTV).