They should be able to determine the COC, annualized return, estimated ARV of a BRRRR, accurate rent comps and more.

Current timeline to purchase is probably 6-12 months as I start narrowing down and visiting some of the places to get a better idea over the next few months.

To determine price range, the first step is always figuring our how much you are pre-approved for; and that can vary significantly when you are looking at multi-unit properties because of the additional variable of rental income that can be included in qualifying.

Start by researching different types of properties, such as residential, commercial, or rental investments, to determine which aligns best with your goals.Building a strong network is also crucial.

Its usually called a post-completion or post-purchase mortgage.

If I got a home equity loan for Property 1 and used the proceeds as downpayment for Property 2 and then got a 2nd loan for the remaining 75% purchase price for Property 2, when I sell Property 2, can I use the Property 1 loan as part of the cost basis for computing Property 2 capital gains?

The type of home you buy determines the tenant you get. 

Help him purchase another home Subject to that existing mortgage. 

-------------------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

@Polat CaglayanI've never seen a formula but here is a general rule of thumb for multifamily:The class of an apartment refers to the quality of the building, which can be determined by a number of factors, including age, location, and condition: Class A: These are the highest quality apartments, typically built within the last 15 years.