My only regret is that I never considered real estate decades ago, but I look forward to this journey and the impact it will have on my family.  

.- They often get sold Class C or D properties while using Class A assumptions - then wonder why they are losing money.Here's some copy & paste info that you hopefully find helpful:-----------------------------------------------------------------------------------------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?

Market Fluctuations – What if appreciation stalls, or rates rise, impacting your refi strategy?

A couple developers we work with skip LIHTC and the tax credits and go the route of impact funds to help alongside other debt and sometimes equity. 

The shorter the prepayment term has an impact on increasing the rate.4.

-------------------------------------------------------------------------------------------------------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?

If you can access the wall cavity, adding rock wool (mineral wool) insulation will make a big impact by reducing vibrations and sound transfer. 

Zillow Senior Economist Orphe Divounguy nailed it when he said mortgage rates have a massive impact on affordability.

@Ming HuangRecommend 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?

Make sure its on a permanent foundation, has concrete pillars, skirting and axles removed and in some states require hurricane Tie downs.